4.123.0

chore(sprites): compile
feat(content): Amber Hatching Potion Quest
2025-10-27 11:12:28 +01:00 · 2019-11-26 15:58:40 -06:00 · 2019-11-26 15:58:27 -06:00 · 2019-11-26 15:58:18 -06:00 · 2019-11-21 16:17:48 -06:00 · 2019-11-21 16:17:43 -06:00
4321 changed files with 421747 additions and 115162 deletions
--- a/.babelrc
+++ b/.babelrc
@@ -1,6 +1,12 @@
 {
-  "plugins": [
-    "transform-es2015-modules-commonjs",
-    "syntax-object-rest-spread",
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "targets": {
+          "node": true
+        }
+      }
+    ]
  ]
-}
+}
--- a/.eslintignore
+++ b/.eslintignore
@@ -3,6 +3,8 @@ coverage/
 database_reports/
 website/build/
 website/transpiled-babel/
+# Has its own linter
+website/client/
 website/common/transpiled-babel/
 dist/
 dist-client/
--- a/.eslintrc
+++ b/.eslintrc
@@ -1,10 +0,0 @@
-{
-  "root": true,
-  "env": {
-    "node": true,
-  },
-  "extends": [
-    "habitrpg",
-    "habitrpg/esnext"
-  ],
-}
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -0,0 +1,6 @@
+module.exports = {
+  root: true,
+  extends: [
+    'habitrpg/lib/node'
+  ],
+}
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,7 +1,7 @@
 [//]: # (Note: See http://habitica.fandom.com/wiki/Using_Your_Local_Install_to_Modify_Habitica%27s_Website_and_API for more info)

 [//]: # (Put Issue # here, if applicable. This will automatically close the issue if your PR is merged in)
-Fixes put_#_and_issue_numer_here
+Fixes put_#_and_issue_number_here

 ### Changes
 [//]: # (Describe the changes that were made in detail here. Include pictures if necessary)
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -0,0 +1,198 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run lint-no-fix
+  apidoc:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run apidoc
+  sanity:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run test:sanity
+  
+  common:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run test:common
+  content:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run test:content
+  
+  api-unit:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: sudo docker run --name mongo -d -p 27017:27017 mongo
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run test:api:unit
+      env:
+        REQUIRES_SERVER=true: true
+  api-v3-integration:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: sudo docker run --name mongo -d -p 27017:27017 mongo
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run test:api-v3:integration
+      env:
+        REQUIRES_SERVER=true: true
+  api-v4-integration:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: sudo docker run --name mongo -d -p 27017:27017 mongo
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run test:api-v4:integration
+      env:
+        REQUIRES_SERVER=true: true
+
+  client-unit:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x]
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        fetch-depth: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: cp config.json.example config.json
+    - name: npm install
+      run: |
+        npm ci
+      env:
+        CI: true
+    - run: npm run test:unit
+      working-directory: ./website/client
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,5 @@
 .DS_Store
-website/client-old/gen
-website/client-old/common
-website/client-old/apidoc
 website/build
-website/client-old/js/habitrpg-shared.js*
-website/client-old/css/habitrpg-shared.css
 website/transpiled-babel/
 website/common/transpiled-babel/
 node_modules
@@ -15,8 +10,6 @@ apidoc_build
 config.json
 npm-debug.log*
 lib
-website/client-old/bower_components
-website/client-old/new-stuff.html
 newrelic_agent.log
 .bower-tmp
 .bower-registry
@@ -27,15 +20,13 @@ TODO
 *.log
 src/*/*.map
 src/*/*/*.map
-test/*.js
-test/*.map
-website/client-old/docs
 *.sublime-workspace
 coverage
 coverage.html
 common/dist/scripts/*
 dist
 dist-client
+website/client/dist
 test/client/unit/coverage
 test/client/e2e/reports
 test/client-old/spec/mocks/translations.js
--- a/.nodemonignore
+++ b/.nodemonignore
@@ -1,20 +1,9 @@
 node_modules/**
-.bower-cache/**
-.bower-tmp/**
-.bower-registry/**
-website/client-old/**
 website/client/**
-website/client/store/**
-website/views/**
-website/build/**
-dist/**
 test/**
 .git/**
-Gruntfile.js
-CHANGELOG.md
 .idea*
 *.log
-newrelic_agent.log
 *.swp
 *.swx
 website/raw_sprites/**
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,29 +0,0 @@
-language: node_js
-node_js:
-  - '12'
-services:
-  - mongodb
-cache:
-  directories:
-    - 'node_modules'
-addons:
-  chrome: stable
-before_script:
-  - npm run test:build
-  - cp config.json.example config.json
-  - sleep 5
-script:
-  - npm run $TEST
-env:
-  global:
-    - DISABLE_REQUEST_LOGGING=true
-  matrix:
-    - TEST="lint"
-    - TEST="test:api:unit" REQUIRES_SERVER=true COVERAGE=true
-    - TEST="test:api-v3:integration" REQUIRES_SERVER=true COVERAGE=true
-    - TEST="test:api-v4:integration" REQUIRES_SERVER=true COVERAGE=true
-    - TEST="test:sanity"
-    - TEST="test:content" COVERAGE=true
-    - TEST="test:common" COVERAGE=true
-    - TEST="client:unit" COVERAGE=true
-    - TEST="apidoc"
--- a/7
+++ b/7
@@ -19,12 +19,9 @@ RUN npm install -g gulp-cli mocha
 RUN mkdir -p /usr/src/habitrpg
 WORKDIR /usr/src/habitrpg
 RUN git clone --branch release --depth 1 https://github.com/HabitRPG/habitica.git /usr/src/habitrpg
+RUN npm set unsafe-perm true
 RUN npm install
-RUN gulp build:prod --force
-
-# Create Build dir
-RUN mkdir -p ./website/build

 # Start Habitica
-EXPOSE 3000
+EXPOSE 80 8080 36612
 CMD ["node", "./website/transpiled-babel/index.js"]
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-Habitica [![Build Status](https://travis-ci.org/HabitRPG/habitica.svg?branch=develop)](https://travis-ci.org/HabitRPG/habitica) [![Code Climate](https://codeclimate.com/github/HabitRPG/habitrpg.svg)](https://codeclimate.com/github/HabitRPG/habitrpg) [![Bountysource](https://api.bountysource.com/badge/tracker?tracker_id=68393)](https://www.bountysource.com/trackers/68393-habitrpg?utm_source=68393&utm_medium=shield&utm_campaign=TRACKER_BADGE) [![Open Source Helpers](https://www.codetriage.com/habitrpg/habitica/badges/users.svg)](https://www.codetriage.com/habitrpg/habitica)
+Habitica ![Build Status](https://github.com/HabitRPG/habitica/workflows/Test/badge.svg) [![Code Climate](https://codeclimate.com/github/HabitRPG/habitrpg.svg)](https://codeclimate.com/github/HabitRPG/habitrpg) [![Bountysource](https://api.bountysource.com/badge/tracker?tracker_id=68393)](https://www.bountysource.com/trackers/68393-habitrpg?utm_source=68393&utm_medium=shield&utm_campaign=TRACKER_BADGE) [![Open Source Helpers](https://www.codetriage.com/habitrpg/habitica/badges/users.svg)](https://www.codetriage.com/habitrpg/habitica)
 ===============

 [![Greenkeeper badge](https://badges.greenkeeper.io/HabitRPG/habitica.svg)](https://greenkeeper.io/)
--- a/VAGRANT.md
+++ b/VAGRANT.md
@@ -1,11 +0,0 @@
-# Vagrant #
-
-Vagrant is a system to create reproducible and portable development
-environments. Because of the variety of systems used for Habitica
-development and the various issues developers may encounter setting up
-Habitica on them, vagrant provides a single development enviroment with
-minimal dependencies on the developer's local platform. It can be used
-on a variety of systems including Windows, Mac OS X, and Linux.
-
-Instructions for using the Habitica Vagrant environment are in
-[Setting up Habitica Locally](http://habitica.fandom.com/wiki/Setting_up_Habitica_Locally).
--- a/Vagrantfile.example
+++ b/Vagrantfile.example
@@ -1,22 +0,0 @@
-# -*- mode: ruby -*-
-# vi: set ft=ruby :
-
-# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
-VAGRANTFILE_API_VERSION = "2"
-
-Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
-  config.vm.provider "virtualbox" do |v|
-    v.memory = 4096
-    v.cpus = 1
-    v.customize ["setextradata", :id, "VBoxInternal2/SharedFoldersEnableSymlinksCreate/vagrant", "1"]
-  end
-  config.vm.box = "thepeopleseason/habitrpg"
-  config.ssh.forward_agent = true
-
-  config.vm.hostname = "habitrpg"
-  config.vm.network "forwarded_port", guest: 3000, host: 3000, auto_correct: true
-  config.vm.usable_port_range = (3000..3050)
-  config.vm.network "forwarded_port", guest: 8080, host: 8080, auto_correct: true
-  config.vm.usable_port_range = (8080..8130)
-  config.vm.provision :shell, :path => "vagrant_scripts/vagrant.sh"
-end
--- a/config.json.example
+++ b/config.json.example
@@ -33,6 +33,7 @@
  "LOGGLY_TOKEN": "example-token",
  "MAINTENANCE_MODE": "false",
  "NODE_DB_URI": "mongodb://localhost/habitrpg",
+  "MONGODB_POOL_SIZE": "10",
  "NODE_ENV": "development",
  "PATH": "bin:node_modules/.bin:/usr/local/bin:/usr/bin:/bin",
  "PAYPAL_BILLING_PLANS_basic_12mo": "basic_12mo",
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -35,7 +35,7 @@ services:
      - .:/code
      - /code/node_modules
  mongo:
-    image: mongo:3.4
+    image: mongo:3.6
    networks:
      - habitica
    ports:
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -25,7 +25,7 @@ services:
      - mongo

  mongo:
-    image: mongo:3.4
+    image: mongo:3.6
    ports:
      - "27017:27017"
    networks:
--- a/gulp/gulp-apidoc.js
+++ b/gulp/gulp-apidoc.js
@@ -4,12 +4,12 @@ import apidoc from 'apidoc';

 const APIDOC_DEST_PATH = './apidoc_build';
 const APIDOC_SRC_PATH = './website/server';
-gulp.task('apidoc:clean', (done) => {
+gulp.task('apidoc:clean', done => {
  clean(APIDOC_DEST_PATH, done);
 });

-gulp.task('apidoc', gulp.series('apidoc:clean', (done) => {
-  let result = apidoc.createDoc({
+gulp.task('apidoc', gulp.series('apidoc:clean', done => {
+  const result = apidoc.createDoc({
    src: APIDOC_SRC_PATH,
    dest: APIDOC_DEST_PATH,
  });
@@ -21,6 +21,4 @@ gulp.task('apidoc', gulp.series('apidoc:clean', (done) => {
  }
 }));

-gulp.task('apidoc:watch', gulp.series('apidoc', (done) => {
-  return gulp.watch(`${APIDOC_SRC_PATH}/**/*.js`, gulp.series('apidoc', done));
-}));
+gulp.task('apidoc:watch', gulp.series('apidoc', done => gulp.watch(`${APIDOC_SRC_PATH}/**/*.js`, gulp.series('apidoc', done))));
--- a/gulp/gulp-build.js
+++ b/gulp/gulp-build.js
@@ -1,43 +1,28 @@
 import gulp from 'gulp';
 import babel from 'gulp-babel';
-import webpackProductionBuild from '../webpack/build';

-gulp.task('build:src', () => {
-  return gulp.src('website/server/**/*.js')
-    .pipe(babel())
-    .pipe(gulp.dest('website/transpiled-babel/'));
-});
+gulp.task('build:src', () => gulp.src('website/server/**/*.js')
+  .pipe(babel())
+  .pipe(gulp.dest('website/transpiled-babel/')));

-gulp.task('build:common', () => {
-  return gulp.src('website/common/script/**/*.js')
-    .pipe(babel())
-    .pipe(gulp.dest('website/common/transpiled-babel/'));
-});
+gulp.task('build:common', () => gulp.src('website/common/script/**/*.js')
+  .pipe(babel())
+  .pipe(gulp.dest('website/common/transpiled-babel/')));

 gulp.task('build:server', gulp.series('build:src', 'build:common', done => done()));

-// Client Production Build
-gulp.task('build:client', (done) => {
-  webpackProductionBuild((err, output) => {
-    if (err) return done(err);
-    console.log(output); // eslint-disable-line no-console
-    done();
-  });
-});
-
 gulp.task('build:prod', gulp.series(
  'build:server',
-  'build:client',
  'apidoc',
-  done => done()
+  done => done(),
 ));

-let buildArgs = [];
+const buildArgs = [];

 if (process.env.NODE_ENV === 'production') { // eslint-disable-line no-process-env
  buildArgs.push('build:prod');
 }

-gulp.task('build', gulp.series(buildArgs, (done) => {
+gulp.task('build', gulp.series(buildArgs, done => {
  done();
-}));
+}));
--- a/gulp/gulp-console.js
+++ b/gulp/gulp-console.js
@@ -1,26 +1,30 @@
 import mongoose from 'mongoose';
-import logger  from '../website/server/libs/logger';
-import nconf    from 'nconf';
-import repl     from 'repl';
-import gulp     from 'gulp';
+import nconf from 'nconf';
+import repl from 'repl';
+import gulp from 'gulp';
+import logger from '../website/server/libs/logger';

 // Add additional properties to the repl's context
-let improveRepl = (context) => {
+const improveRepl = context => {
  // Let "exit" and "quit" terminate the console
-  ['exit', 'quit'].forEach((term) => {
-    Object.defineProperty(context, term, { get () {
-      process.exit();
-    }});
+  ['exit', 'quit'].forEach(term => {
+    Object.defineProperty(context, term, {
+      get () { // eslint-disable-line getter-return
+        process.exit();
+      },
+    });
  });

  // "clear" clears the screen
-  Object.defineProperty(context, 'clear', { get () {
-    process.stdout.write('\u001B[2J\u001B[0;0f');
-  }});
+  Object.defineProperty(context, 'clear', {
+    get () { // eslint-disable-line getter-return
+      process.stdout.write('\u001B[2J\u001B[0;0f');
+    },
+  });

  context.Challenge = require('../website/server/models/challenge').model; // eslint-disable-line global-require
-  context.Group     = require('../website/server/models/group').model; // eslint-disable-line global-require
-  context.User      = require('../website/server/models/user').model; // eslint-disable-line global-require
+  context.Group = require('../website/server/models/group').model; // eslint-disable-line global-require
+  context.User = require('../website/server/models/user').model; // eslint-disable-line global-require

  const isProd = nconf.get('NODE_ENV') === 'production';
  const mongooseOptions = !isProd ? {} : {
@@ -30,14 +34,14 @@ let improveRepl = (context) => {
  mongoose.connect(
    nconf.get('NODE_DB_URI'),
    mongooseOptions,
-    (err) => {
+    err => {
      if (err) throw err;
      logger.info('Connected with Mongoose');
-    }
+    },
  );
 };

-gulp.task('console', (done) => {
+gulp.task('console', done => {
  improveRepl(repl.start({
    prompt: 'Habitica > ',
  }).context);
--- a/gulp/gulp-sprites.js
+++ b/gulp/gulp-sprites.js
@@ -4,29 +4,29 @@ import spritesmith from 'gulp.spritesmith';
 import clean from 'rimraf';
 import sizeOf from 'image-size';
 import mergeStream from 'merge-stream';
-import {basename} from 'path';
-import {sync} from 'glob';
-import {each} from 'lodash';
+import { basename } from 'path';
+import { sync } from 'glob';
+import { each } from 'lodash';
 import vinylBuffer from 'vinyl-buffer';

 // https://github.com/Ensighten/grunt-spritesmith/issues/67#issuecomment-34786248
 const MAX_SPRITESHEET_SIZE = 1024 * 1024 * 3;

-const IMG_DIST_PATH = 'website/client/assets/images/sprites/';
-const CSS_DIST_PATH = 'website/client/assets/css/sprites/';
+const IMG_DIST_PATH = 'website/client/src/assets/images/sprites/';
+const CSS_DIST_PATH = 'website/client/src/assets/css/sprites/';

 function checkForSpecialTreatment (name) {
-  let regex = /^hair|skin|beard|mustach|shirt|flower|^headAccessory_special_\w+Ears|^eyewear_special_\w+TopFrame|^eyewear_special_\w+HalfMoon/;
+  const regex = /^hair|skin|beard|mustach|shirt|flower|^headAccessory_special_\w+Ears|^eyewear_special_\w+TopFrame|^eyewear_special_\w+HalfMoon/;
  return name.match(regex) || name === 'head_0';
 }

 function calculateImgDimensions (img, addPadding) {
  let dims = sizeOf(img);

-  let requiresSpecialTreatment = checkForSpecialTreatment(img);
+  const requiresSpecialTreatment = checkForSpecialTreatment(img);
  if (requiresSpecialTreatment) {
-    let newWidth = dims.width < 90 ? 90 : dims.width;
-    let newHeight = dims.height < 90 ? 90 : dims.height;
+    const newWidth = dims.width < 90 ? 90 : dims.width;
+    const newHeight = dims.height < 90 ? 90 : dims.height;
    dims = {
      width: newWidth,
      height: newHeight,
@@ -41,17 +41,17 @@ function calculateImgDimensions (img, addPadding) {

  if (!dims.width || !dims.height) console.error('MISSING DIMENSIONS:', dims); // eslint-disable-line no-console

-  let totalPixelSize = dims.width * dims.height + padding;
+  const totalPixelSize = dims.width * dims.height + padding;

  return totalPixelSize;
 }

 function calculateSpritesheetsSrcIndicies (src) {
  let totalPixels = 0;
-  let slices = [0];
+  const slices = [0];

  each(src, (img, index) => {
-    let imageSize = calculateImgDimensions(img, true);
+    const imageSize = calculateImgDimensions(img, true);
    totalPixels += imageSize;

    if (totalPixels > MAX_SPRITESHEET_SIZE) {
@@ -64,37 +64,35 @@ function calculateSpritesheetsSrcIndicies (src) {
 }

 function cssVarMap (sprite) {
-  // For hair, skins, beards, etc. we want to output a '.customize-options.WHATEVER' class, which works as a
-  // 60x60 image pointing at the proper part of the 90x90 sprite.
+  // For hair, skins, beards, etc. we want to output a '.customize-options.WHATEVER' class,
+  // which works as a 60x60 image pointing at the proper part of the 90x90 sprite.
  // We set up the custom info here, and the template makes use of it.
-  let requiresSpecialTreatment = checkForSpecialTreatment(sprite.name);
+  const requiresSpecialTreatment = checkForSpecialTreatment(sprite.name);
  if (requiresSpecialTreatment) {
    sprite.custom = {
      px: {
-        offsetX: `-${ sprite.x + 25 }px`,
-        offsetY: `-${ sprite.y + 15 }px`,
+        offsetX: `-${sprite.x + 25}px`,
+        offsetY: `-${sprite.y + 15}px`,
        width: '60px',
        height: '60px',
      },
    };
  }
-  if (sprite.name.indexOf('shirt') !== -1)
-    sprite.custom.px.offsetY = `-${ sprite.y + 35 }px`; // even more for shirts
+  if (sprite.name.indexOf('shirt') !== -1) sprite.custom.px.offsetY = `-${sprite.y + 35}px`; // even more for shirts
  if (sprite.name.indexOf('hair_base') !== -1) {
-    let styleArray = sprite.name.split('_').slice(2, 3);
-    if (Number(styleArray[0]) > 14)
-      sprite.custom.px.offsetY = `-${ sprite.y }px`; // don't crop updos
+    const styleArray = sprite.name.split('_').slice(2, 3);
+    if (Number(styleArray[0]) > 14) sprite.custom.px.offsetY = `-${sprite.y}px`; // don't crop updos
  }
 }

 function createSpritesStream (name, src) {
-  let spritesheetSliceIndicies = calculateSpritesheetsSrcIndicies(src);
-  let stream = mergeStream();
+  const spritesheetSliceIndicies = calculateSpritesheetsSrcIndicies(src);
+  const stream = mergeStream();

  each(spritesheetSliceIndicies, (start, index) => {
-    let slicedSrc = src.slice(start, spritesheetSliceIndicies[index + 1]);
+    const slicedSrc = src.slice(start, spritesheetSliceIndicies[index + 1]);

-    let spriteData = gulp.src(slicedSrc)
+    const spriteData = gulp.src(slicedSrc)
      .pipe(spritesmith({
        imgName: `spritesmith-${name}-${index}.png`,
        cssName: `spritesmith-${name}-${index}.css`,
@@ -104,12 +102,12 @@ function createSpritesStream (name, src) {
        cssVarMap,
      }));

-    let imgStream = spriteData.img
+    const imgStream = spriteData.img
      .pipe(vinylBuffer())
      .pipe(imagemin())
      .pipe(gulp.dest(IMG_DIST_PATH));

-    let cssStream = spriteData.css
+    const cssStream = spriteData.css
      .pipe(gulp.dest(CSS_DIST_PATH));

    stream.add(imgStream);
@@ -120,32 +118,32 @@ function createSpritesStream (name, src) {
 }

 gulp.task('sprites:main', () => {
-  let mainSrc = sync('website/raw_sprites/spritesmith/**/*.png');
+  const mainSrc = sync('website/raw_sprites/spritesmith/**/*.png');
  return createSpritesStream('main', mainSrc);
 });

 gulp.task('sprites:largeSprites', () => {
-  let largeSrc = sync('website/raw_sprites/spritesmith_large/**/*.png');
+  const largeSrc = sync('website/raw_sprites/spritesmith_large/**/*.png');
  return createSpritesStream('largeSprites', largeSrc);
 });

-gulp.task('sprites:clean', (done) => {
+gulp.task('sprites:clean', done => {
  clean(`${IMG_DIST_PATH}spritesmith*,${CSS_DIST_PATH}spritesmith*}`, done);
 });

-gulp.task('sprites:checkCompiledDimensions', gulp.series('sprites:main', 'sprites:largeSprites', (done) => {
+gulp.task('sprites:checkCompiledDimensions', gulp.series('sprites:main', 'sprites:largeSprites', done => {
  console.log('Verifiying that images do not exceed max dimensions'); // eslint-disable-line no-console

  let numberOfSheetsThatAreTooBig = 0;

-  let distSpritesheets = sync(`${IMG_DIST_PATH}*.png`);
+  const distSpritesheets = sync(`${IMG_DIST_PATH}*.png`);

-  each(distSpritesheets, (img) => {
-    let spriteSize = calculateImgDimensions(img);
+  each(distSpritesheets, img => {
+    const spriteSize = calculateImgDimensions(img);

    if (spriteSize > MAX_SPRITESHEET_SIZE) {
-      numberOfSheetsThatAreTooBig++;
-      let name = basename(img, '.png');
+      numberOfSheetsThatAreTooBig += 1;
+      const name = basename(img, '.png');
      console.error(`WARNING: ${name} might be too big - ${spriteSize} > ${MAX_SPRITESHEET_SIZE}`); // eslint-disable-line no-console
    }
  });
@@ -155,7 +153,8 @@ gulp.task('sprites:checkCompiledDimensions', gulp.series('sprites:main', 'sprite
    console.error( // eslint-disable-line no-console
      `${numberOfSheetsThatAreTooBig} sheets might too big for mobile Safari to be able to handle
      them, but there is a margin of error in these calculations so it is probably okay. Mention
-      this to an admin so they can test a staging site on mobile Safari after your PR is merged.`);
+      this to an admin so they can test a staging site on mobile Safari after your PR is merged.`,
+    );
  } else {
    console.log('All images are within the correct dimensions'); // eslint-disable-line no-console
  }
--- a/gulp/gulp-start.js
+++ b/gulp/gulp-start.js
@@ -1,16 +1,11 @@
 import gulp from 'gulp';
 import nodemon from 'gulp-nodemon';

-let pkg = require('../package.json');
+import pkg from '../package.json';

-gulp.task('nodemon', (done) => {
+gulp.task('nodemon', done => {
  nodemon({
    script: pkg.main,
-    ignore: [
-      'website/client-old/*',
-      'website/views/*',
-      'common/dist/script/content/*',
-    ],
  });
  done();
 });
--- a/gulp/gulp-tests.js
+++ b/gulp/gulp-tests.js
@@ -1,60 +1,59 @@
+import mongoose from 'mongoose';
+import { exec } from 'child_process';
+import gulp from 'gulp';
+import os from 'os';
+import nconf from 'nconf';
 import {
  pipe,
-}  from './taskHelper';
-import mongoose                   from 'mongoose';
-import { exec }                   from 'child_process';
-import gulp                       from 'gulp';
-import os                         from 'os';
-import nconf                      from 'nconf';
+} from './taskHelper';

 // TODO rewrite

-const TEST_SERVER_PORT  = 3003;
+const TEST_SERVER_PORT = 3003;
 let server;

-const TEST_DB_URI       = nconf.get('TEST_DB_URI');
+const TEST_DB_URI = nconf.get('TEST_DB_URI');

 const SANITY_TEST_COMMAND = 'npm run test:sanity';
 const COMMON_TEST_COMMAND = 'npm run test:common';
 const CONTENT_TEST_COMMAND = 'npm run test:content';
-const CONTENT_OPTIONS = {maxBuffer: 1024 * 500};
+const CONTENT_OPTIONS = { maxBuffer: 1024 * 500 };

 /* Helper methods for reporting test summary */
-let testResults = [];
-let testCount = (stdout, regexp) => {
-  let match = stdout.match(regexp);
-  return parseInt(match && match[1] || 0, 10);
+const testResults = [];
+const testCount = (stdout, regexp) => {
+  const match = stdout.match(regexp);
+  return parseInt(match && (match[1] || 0), 10);
 };

-let testBin = (string, additionalEnvVariables = '') => {
+const testBin = (string, additionalEnvVariables = '') => {
  if (os.platform() === 'win32') {
    if (additionalEnvVariables !== '') {
-      additionalEnvVariables = additionalEnvVariables.split(' ').join('&&set ');
-      additionalEnvVariables = `set ${additionalEnvVariables}&&`;
+      additionalEnvVariables = additionalEnvVariables.split(' ').join('&&set '); // eslint-disable-line no-param-reassign
+      additionalEnvVariables = `set ${additionalEnvVariables}&&`; // eslint-disable-line no-param-reassign
    }
    return `set NODE_ENV=test&&${additionalEnvVariables}${string}`;
-  } else {
-    return `NODE_ENV=test ${additionalEnvVariables} ${string}`;
  }
+  return `NODE_ENV=test ${additionalEnvVariables} ${string}`;
 };

-gulp.task('test:nodemon', gulp.series(function setupNodemon (done) {
+gulp.task('test:nodemon', gulp.series(done => {
  process.env.PORT = TEST_SERVER_PORT; // eslint-disable-line no-process-env
  process.env.NODE_DB_URI = TEST_DB_URI; // eslint-disable-line no-process-env
  done();
 }, 'nodemon'));

-gulp.task('test:prepare:mongo', (cb) => {
-  mongoose.connect(TEST_DB_URI, (err) => {
+gulp.task('test:prepare:mongo', cb => {
+  mongoose.connect(TEST_DB_URI, err => {
    if (err) return cb(`Unable to connect to mongo database. Are you sure it's running? \n\n${err}`);
-    mongoose.connection.dropDatabase((err2) => {
+    return mongoose.connection.dropDatabase(err2 => {
      if (err2) return cb(err2);
-      mongoose.connection.close(cb);
+      return mongoose.connection.close(cb);
    });
  });
 });

-gulp.task('test:prepare:server', gulp.series('test:prepare:mongo', (done) => {
+gulp.task('test:prepare:server', gulp.series('test:prepare:mongo', done => {
  if (!server) {
    server = exec(testBin('node ./website/server/index.js', `NODE_DB_URI=${TEST_DB_URI} PORT=${TEST_SERVER_PORT}`), (error, stdout, stderr) => {
      if (error) {
@@ -73,45 +72,43 @@ gulp.task('test:prepare:build', gulp.series('build', done => done()));
 gulp.task('test:prepare', gulp.series(
  'test:prepare:build',
  'test:prepare:mongo',
-  done => done()
+  done => done(),
 ));

-gulp.task('test:sanity', (cb) => {
-  let runner = exec(
+gulp.task('test:sanity', cb => {
+  const runner = exec(
    testBin(SANITY_TEST_COMMAND),
-    (err) => {
+    err => {
      if (err) {
        process.exit(1);
      }
      cb();
-    }
+    },
  );
  pipe(runner);
 });

-gulp.task('test:common', gulp.series('test:prepare:build', (cb) => {
-  let runner = exec(
+gulp.task('test:common', gulp.series('test:prepare:build', cb => {
+  const runner = exec(
    testBin(COMMON_TEST_COMMAND),
-    (err) => {
+    err => {
      if (err) {
        process.exit(1);
      }
      cb();
-    }
+    },
  );
  pipe(runner);
 }));

-gulp.task('test:common:clean', (cb) => {
+gulp.task('test:common:clean', cb => {
  pipe(exec(testBin(COMMON_TEST_COMMAND), () => cb()));
 });

-gulp.task('test:common:watch', gulp.series('test:common:clean', () => {
-  return gulp.watch(['common/script/**/*', 'test/common/**/*'], gulp.series('test:common:clean', done => done()));
-}));
+gulp.task('test:common:watch', gulp.series('test:common:clean', () => gulp.watch(['common/script/**/*', 'test/common/**/*'], gulp.series('test:common:clean', done => done()))));

-gulp.task('test:common:safe', gulp.series('test:prepare:build', (cb) => {
-  let runner = exec(
+gulp.task('test:common:safe', gulp.series('test:prepare:build', cb => {
+  const runner = exec(
    testBin(COMMON_TEST_COMMAND),
    (err, stdout) => { // eslint-disable-line handle-callback-err
      testResults.push({
@@ -121,38 +118,36 @@ gulp.task('test:common:safe', gulp.series('test:prepare:build', (cb) => {
        pend: testCount(stdout, /(\d+) pending/),
      });
      cb();
-    }
+    },
  );
  pipe(runner);
 }));

-gulp.task('test:content', gulp.series('test:prepare:build', (cb) => {
-  let runner = exec(
+gulp.task('test:content', gulp.series('test:prepare:build', cb => {
+  const runner = exec(
    testBin(CONTENT_TEST_COMMAND),
    CONTENT_OPTIONS,
-    (err) => {
+    err => {
      if (err) {
        process.exit(1);
      }
      cb();
-    }
+    },
  );
  pipe(runner);
 }));

-gulp.task('test:content:clean', (cb) => {
+gulp.task('test:content:clean', cb => {
  pipe(exec(testBin(CONTENT_TEST_COMMAND), CONTENT_OPTIONS, () => cb()));
 });

-gulp.task('test:content:watch', gulp.series('test:content:clean', () => {
-  return gulp.watch(['common/script/content/**', 'test/**'], gulp.series('test:content:clean', done => done()));
-}));
+gulp.task('test:content:watch', gulp.series('test:content:clean', () => gulp.watch(['common/script/content/**', 'test/**'], gulp.series('test:content:clean', done => done()))));

-gulp.task('test:content:safe', gulp.series('test:prepare:build', (cb) => {
-  let runner = exec(
+gulp.task('test:content:safe', gulp.series('test:prepare:build', cb => {
+  const runner = exec(
    testBin(CONTENT_TEST_COMMAND),
    CONTENT_OPTIONS,
-    (err, stdout) => {  // eslint-disable-line handle-callback-err
+    (err, stdout) => { // eslint-disable-line handle-callback-err
      testResults.push({
        suite: 'Content Specs\t',
        pass: testCount(stdout, /(\d+) passing/),
@@ -160,81 +155,77 @@ gulp.task('test:content:safe', gulp.series('test:prepare:build', (cb) => {
        pend: testCount(stdout, /(\d+) pending/),
      });
      cb();
-    }
+    },
  );
  pipe(runner);
 }));

-gulp.task('test:api:unit', (done) => {
-  let runner = exec(
+gulp.task('test:api:unit', done => {
+  const runner = exec(
    testBin('istanbul cover --dir coverage/api-unit node_modules/mocha/bin/_mocha -- test/api/unit --recursive --require ./test/helpers/start-server'),
-    (err) => {
+    err => {
      if (err) {
        process.exit(1);
      }
      done();
-    }
+    },
  );

  pipe(runner);
 });

-gulp.task('test:api:unit:watch', () => {
-  return gulp.watch(['website/server/libs/*', 'test/api/unit/**/*', 'website/server/controllers/**/*'], gulp.series('test:api:unit', done => done()));
-});
+gulp.task('test:api:unit:watch', () => gulp.watch(['website/server/libs/*', 'test/api/unit/**/*', 'website/server/controllers/**/*'], gulp.series('test:api:unit', done => done())));

-gulp.task('test:api-v3:integration', (done) => {
-  let runner = exec(
+gulp.task('test:api-v3:integration', done => {
+  const runner = exec(
    testBin('istanbul cover --dir coverage/api-v3-integration --report lcovonly node_modules/mocha/bin/_mocha -- test/api/v3/integration --recursive --require ./test/helpers/start-server'),
-    {maxBuffer: 500 * 1024},
-    (err) => {
+    { maxBuffer: 500 * 1024 },
+    err => {
      if (err) {
        process.exit(1);
      }
      done();
-    }
+    },
  );

  pipe(runner);
 });

-gulp.task('test:api-v3:integration:watch', () => {
-  return gulp.watch([
-    'website/server/controllers/api-v3/**/*', 'common/script/ops/*', 'website/server/libs/*.js',
-    'test/api/v3/integration/**/*',
-  ], gulp.series('test:api-v3:integration', done => done()));
-});
+gulp.task('test:api-v3:integration:watch', () => gulp.watch([
+  'website/server/controllers/api-v3/**/*', 'common/script/ops/*', 'website/server/libs/*.js',
+  'test/api/v3/integration/**/*',
+], gulp.series('test:api-v3:integration', done => done())));

-gulp.task('test:api-v3:integration:separate-server', (done) => {
-  let runner = exec(
+gulp.task('test:api-v3:integration:separate-server', done => {
+  const runner = exec(
    testBin('mocha test/api/v3/integration --recursive --require ./test/helpers/start-server', 'LOAD_SERVER=0'),
-    {maxBuffer: 500 * 1024},
-    (err) => done(err)
+    { maxBuffer: 500 * 1024 },
+    err => done(err),
  );

  pipe(runner);
 });

-gulp.task('test:api-v4:integration', (done) => {
-  let runner = exec(
+gulp.task('test:api-v4:integration', done => {
+  const runner = exec(
    testBin('istanbul cover --dir coverage/api-v4-integration --report lcovonly node_modules/mocha/bin/_mocha -- test/api/v4 --recursive --require ./test/helpers/start-server'),
-    {maxBuffer: 500 * 1024},
-    (err) => {
+    { maxBuffer: 500 * 1024 },
+    err => {
      if (err) {
        process.exit(1);
      }
      done();
-    }
+    },
  );

  pipe(runner);
 });

-gulp.task('test:api-v4:integration:separate-server', (done) => {
-  let runner = exec(
+gulp.task('test:api-v4:integration:separate-server', done => {
+  const runner = exec(
    testBin('mocha test/api/v4 --recursive --require ./test/helpers/start-server', 'LOAD_SERVER=0'),
-    {maxBuffer: 500 * 1024},
-    (err) => done(err)
+    { maxBuffer: 500 * 1024 },
+    err => done(err),
  );

  pipe(runner);
@@ -247,11 +238,11 @@ gulp.task('test', gulp.series(
  'test:api:unit',
  'test:api-v3:integration',
  'test:api-v4:integration',
-  done => done()
+  done => done(),
 ));

 gulp.task('test:api-v3', gulp.series(
  'test:api:unit',
  'test:api-v3:integration',
-  done => done()
+  done => done(),
 ));
--- a/gulp/gulp-transifex-test.js
+++ b/gulp/gulp-transifex-test.js
@@ -1,6 +1,6 @@
-import fs       from 'fs';
-import _        from 'lodash';
-import gulp     from 'gulp';
+import fs from 'fs';
+import _ from 'lodash';
+import gulp from 'gulp';
 import { postToSlack, conf } from './taskHelper';

 const SLACK_CONFIG = {
@@ -14,7 +14,7 @@ const ENGLISH_LOCALE = `${LOCALES}en/`;


 function getArrayOfLanguages () {
-  let languages = fs.readdirSync(LOCALES);
+  const languages = fs.readdirSync(LOCALES);
  languages.shift(); // Remove README.md from array of languages

  return languages;
@@ -23,18 +23,16 @@ function getArrayOfLanguages () {
 const ALL_LANGUAGES = getArrayOfLanguages();

 function stripOutNonJsonFiles (collection) {
-  let onlyJson = _.filter(collection, (file) => {
-    return file.match(/[a-zA-Z]*\.json/);
-  });
+  const onlyJson = _.filter(collection, file => file.match(/[a-zA-Z]*\.json/));

  return onlyJson;
 }

 function eachTranslationFile (languages, cb) {
-  let jsonFiles = stripOutNonJsonFiles(fs.readdirSync(ENGLISH_LOCALE));
+  const jsonFiles = stripOutNonJsonFiles(fs.readdirSync(ENGLISH_LOCALE));

-  _.each(languages, (lang) => {
-    _.each(jsonFiles, (filename) => {
+  _.each(languages, lang => {
+    _.each(jsonFiles, filename => {
      let parsedTranslationFile;
      try {
        const translationFile = fs.readFileSync(`${LOCALES}${lang}/${filename}`);
@@ -43,10 +41,10 @@ function eachTranslationFile (languages, cb) {
        return cb(err);
      }

-      let englishFile = fs.readFileSync(ENGLISH_LOCALE + filename);
-      let parsedEnglishFile = JSON.parse(englishFile);
+      const englishFile = fs.readFileSync(ENGLISH_LOCALE + filename);
+      const parsedEnglishFile = JSON.parse(englishFile);

-      cb(null, lang, filename, parsedEnglishFile, parsedTranslationFile);
+      return cb(null, lang, filename, parsedEnglishFile, parsedTranslationFile);
    });
  });
 }
@@ -71,9 +69,9 @@ function formatMessageForPosting (msg, items) {
 }

 function getStringsWith (json, interpolationRegex) {
-  let strings = {};
+  const strings = {};

-  _.each(json, (fileName) => {
+  _.each(json, fileName => {
    const rawFile = fs.readFileSync(ENGLISH_LOCALE + fileName);
    const parsedJson = JSON.parse(rawFile);

@@ -93,66 +91,69 @@ const malformedStringExceptions = {
  feedPet: true,
 };

-gulp.task('transifex:missingFiles', (done) => {
-  let missingStrings = [];
+gulp.task('transifex:missingFiles', done => {
+  const missingStrings = [];

-  eachTranslationFile(ALL_LANGUAGES, (error) => {
+  eachTranslationFile(ALL_LANGUAGES, error => {
    if (error) {
      missingStrings.push(error.path);
    }
  });

  if (!_.isEmpty(missingStrings)) {
-    let message = 'the following files were missing from the translations folder';
-    let formattedMessage = formatMessageForPosting(message, missingStrings);
+    const message = 'the following files were missing from the translations folder';
+    const formattedMessage = formatMessageForPosting(message, missingStrings);
    postToSlack(formattedMessage, SLACK_CONFIG);
  }
  done();
 });

-gulp.task('transifex:missingStrings', (done) => {
-  let missingStrings = [];
+gulp.task('transifex:missingStrings', done => {
+  const missingStrings = [];

-  eachTranslationString(ALL_LANGUAGES, (language, filename, key, englishString, translationString) => {
+  eachTranslationString(ALL_LANGUAGES, (lang, filename, key, englishString, translationString) => {
    if (!translationString) {
-      let errorString = `${language} - ${filename} - ${key} - ${englishString}`;
+      const errorString = `${lang} - ${filename} - ${key} - ${englishString}`;
      missingStrings.push(errorString);
    }
  });

  if (!_.isEmpty(missingStrings)) {
-    let message = 'The following strings are not translated';
-    let formattedMessage = formatMessageForPosting(message, missingStrings);
+    const message = 'The following strings are not translated';
+    const formattedMessage = formatMessageForPosting(message, missingStrings);
    postToSlack(formattedMessage, SLACK_CONFIG);
  }
  done();
 });

-gulp.task('transifex:malformedStrings', (done) => {
-  let jsonFiles = stripOutNonJsonFiles(fs.readdirSync(ENGLISH_LOCALE));
-  let interpolationRegex = /<%= [a-zA-Z]* %>/g;
-  let stringsToLookFor = getStringsWith(jsonFiles, interpolationRegex);
+gulp.task('transifex:malformedStrings', done => {
+  const jsonFiles = stripOutNonJsonFiles(fs.readdirSync(ENGLISH_LOCALE));
+  const interpolationRegex = /<%= [a-zA-Z]* %>/g;
+  const stringsToLookFor = getStringsWith(jsonFiles, interpolationRegex);

-  let stringsWithMalformedInterpolations = [];
-  let stringsWithIncorrectNumberOfInterpolations = [];
+  const stringsWithMalformedInterpolations = [];
+  const stringsWithIncorrectNumberOfInterpolations = [];

-  _.each(ALL_LANGUAGES, (lang) => {
+  _.each(ALL_LANGUAGES, lang => {
    _.each(stringsToLookFor, (strings, filename) => {
-      let translationFile = fs.readFileSync(`${LOCALES}${lang}/${filename}`);
-      let parsedTranslationFile = JSON.parse(translationFile);
+      const translationFile = fs.readFileSync(`${LOCALES}${lang}/${filename}`);
+      const parsedTranslationFile = JSON.parse(translationFile);

      _.each(strings, (value, key) => { // eslint-disable-line max-nested-callbacks
-        let translationString = parsedTranslationFile[key];
+        const translationString = parsedTranslationFile[key];
        if (!translationString) return;

-        let englishOccurences = stringsToLookFor[filename][key];
-        let translationOccurences = translationString.match(interpolationRegex);
+        const englishOccurences = stringsToLookFor[filename][key];
+        const translationOccurences = translationString.match(interpolationRegex);

        if (!translationOccurences) {
-          let malformedString = `${lang} - ${filename} - ${key} - ${translationString}`;
+          const malformedString = `${lang} - ${filename} - ${key} - ${translationString}`;
          stringsWithMalformedInterpolations.push(malformedString);
-        } else if (englishOccurences.length !== translationOccurences.length && !malformedStringExceptions[key]) {
-          let missingInterpolationString = `${lang} - ${filename} - ${key} - ${translationString}`;
+        } else if (
+          englishOccurences.length !== translationOccurences.length
+           && !malformedStringExceptions[key]
+        ) {
+          const missingInterpolationString = `${lang} - ${filename} - ${key} - ${translationString}`;
          stringsWithIncorrectNumberOfInterpolations.push(missingInterpolationString);
        }
      });
@@ -160,14 +161,17 @@ gulp.task('transifex:malformedStrings', (done) => {
  });

  if (!_.isEmpty(stringsWithMalformedInterpolations)) {
-    let message = 'The following strings have malformed or missing interpolations';
-    let formattedMessage = formatMessageForPosting(message, stringsWithMalformedInterpolations);
+    const message = 'The following strings have malformed or missing interpolations';
+    const formattedMessage = formatMessageForPosting(message, stringsWithMalformedInterpolations);
    postToSlack(formattedMessage, SLACK_CONFIG);
  }

  if (!_.isEmpty(stringsWithIncorrectNumberOfInterpolations)) {
-    let message = 'The following strings have a different number of string interpolations';
-    let formattedMessage = formatMessageForPosting(message, stringsWithIncorrectNumberOfInterpolations);
+    const message = 'The following strings have a different number of string interpolations';
+    const formattedMessage = formatMessageForPosting(
+      message,
+      stringsWithIncorrectNumberOfInterpolations,
+    );
    postToSlack(formattedMessage, SLACK_CONFIG);
  }
  done();
@@ -176,5 +180,5 @@ gulp.task('transifex:malformedStrings', (done) => {
 gulp.task(
  'transifex',
  gulp.series('transifex:missingFiles', 'transifex:missingStrings', 'transifex:malformedStrings'),
-  (done) => done()
-);
+  done => done(),
+);
--- a/gulp/taskHelper.js
+++ b/gulp/taskHelper.js
@@ -1,11 +1,11 @@
-import { exec }                   from 'child_process';
-import psTree                     from 'ps-tree';
-import nconf                      from 'nconf';
-import net                        from 'net';
-import { post }                   from 'superagent';
-import { sync as glob }           from 'glob';
-import Mocha                      from 'mocha';
-import { resolve }                from 'path';
+import { exec } from 'child_process';
+import psTree from 'ps-tree';
+import nconf from 'nconf';
+import net from 'net';
+import { post } from 'superagent';
+import { sync as glob } from 'glob';
+import Mocha from 'mocha'; // eslint-disable-line import/no-extraneous-dependencies
+import { resolve } from 'path';

 /*
 * Get access to configruable values
@@ -19,15 +19,15 @@ export const conf = nconf;
 * its tasks.
 */
 export function kill (proc) {
-  let killProcess = (pid) => {
+  const killProcess = pid => {
    psTree(pid, (_, pids) => {
      if (pids.length) {
        pids.forEach(kill); return;
      }
      try {
-        exec(/^win/.test(process.platform) ?
-          `taskkill /PID ${pid} /T /F` :
-          `kill -9 ${pid}`);
+        exec(/^win/.test(process.platform)
+          ? `taskkill /PID ${pid} /T /F`
+          : `kill -9 ${pid}`);
      } catch (e) {
        console.log(e); // eslint-disable-line no-console
      }
@@ -46,16 +46,15 @@ export function kill (proc) {
 export function awaitPort (port, max = 60) {
  return new Promise((rej, res) => {
    let socket;
-    let timeout;
    let interval;

-    timeout = setTimeout(() => {
+    const timeout = setTimeout(() => {
      clearInterval(interval);
      rej(`Timed out after ${max} seconds`);
    }, max * 1000);

    interval = setInterval(() => {
-      socket = net.connect({port}, () => {
+      socket = net.connect({ port }, () => {
        clearInterval(interval);
        clearTimeout(timeout);
        socket.destroy();
@@ -71,10 +70,10 @@ export function awaitPort (port, max = 60) {
 * Pipe the child's stdin and stderr to the parent process.
 */
 export function pipe (child) {
-  child.stdout.on('data', (data) => {
+  child.stdout.on('data', data => {
    process.stdout.write(data);
  });
-  child.stderr.on('data', (data) => {
+  child.stderr.on('data', data => {
    process.stderr.write(data);
  });
 }
@@ -83,7 +82,7 @@ export function pipe (child) {
 * Post request to notify configured slack channel
 */
 export function postToSlack (msg, config = {}) {
-  let slackUrl = nconf.get('SLACK_URL');
+  const slackUrl = nconf.get('SLACK_URL');

  if (!slackUrl) {
    console.error('No slack post url specified. Your message was:'); // eslint-disable-line no-console
@@ -99,7 +98,7 @@ export function postToSlack (msg, config = {}) {
      text: msg,
      icon_emoji: `:${config.emoji || 'gulp'}:`, // eslint-disable-line camelcase
    })
-    .end((err) => {
+    .end(err => {
      if (err) console.error('Unable to post to slack', err); // eslint-disable-line no-console
    });
 }
@@ -107,15 +106,15 @@ export function postToSlack (msg, config = {}) {
 export function runMochaTests (files, server, cb) {
  require('../test/helpers/globals.helper'); // eslint-disable-line global-require

-  let mocha = new Mocha({reporter: 'spec'});
-  let tests = glob(files);
+  const mocha = new Mocha({ reporter: 'spec' });
+  const tests = glob(files);

-  tests.forEach((test) => {
+  tests.forEach(test => {
    delete require.cache[resolve(test)];
    mocha.addFile(test);
  });

-  mocha.run((numberOfFailures) => {
+  mocha.run(numberOfFailures => {
    if (!process.env.RUN_INTEGRATION_TEST_FOREVER) { // eslint-disable-line no-process-env
      if (server) kill(server);
      process.exit(numberOfFailures);
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -6,7 +6,8 @@
 * directory, and it will automatically be included.
 */

-require('babel-register');
+/* eslint-disable import/no-commonjs */
+require('@babel/register');

 const gulp = require('gulp');

--- a/migrations/.eslintrc
+++ b/migrations/.eslintrc
@@ -1,7 +0,0 @@
-{
-  "root": false,
-  "rules": {
-    "no-console": 0,
-    "no-use-before-define": ["error", { "functions": false }]
-  }
-}
--- a/migrations/.eslintrc.js
+++ b/migrations/.eslintrc.js
@@ -0,0 +1,8 @@
+/* eslint-disable import/no-commonjs */
+module.exports = {
+  root: false,
+  rules: {
+    'no-console': 0,
+    'no-use-before-define': ['error', { functions: false }]
+  }
+}
--- a/migrations/archive/2019/20191022_pet_color_achievements.js
+++ b/migrations/archive/2019/20191022_pet_color_achievements.js
@@ -0,0 +1,82 @@
+/* eslint-disable no-console */
+const MIGRATION_NAME = '20191022_pet_color_achievements';
+import { model as User } from '../../../website/server/models/user';
+
+const progressCount = 1000;
+let count = 0;
+
+async function updateUser (user) {
+  count++;
+
+  let set = {
+    migration: MIGRATION_NAME,
+  };
+
+  if (user && user.items && user.items.pets) {
+    const pets = user.items.pets;
+    if (pets['Wolf-Zombie'] > 0
+      && pets['TigerCub-Zombie'] > 0
+      && pets['PandaCub-Zombie'] > 0
+      && pets['LionCub-Zombie'] > 0
+      && pets['Fox-Zombie'] > 0
+      && pets['FlyingPig-Zombie'] > 0
+      && pets['Dragon-Zombie'] > 0
+      && pets['Cactus-Zombie'] > 0
+      && pets['BearCub-Zombie'] > 0) {
+        set['achievements.monsterMagus'] = true;
+      }
+  }
+
+  if (user && user.items && user.items.mounts) {
+    const mounts = user.items.mounts;
+    if (mounts['Wolf-Zombie']
+      && mounts['TigerCub-Zombie']
+      && mounts['PandaCub-Zombie']
+      && mounts['LionCub-Zombie']
+      && mounts['Fox-Zombie']
+      && mounts['FlyingPig-Zombie']
+      && mounts['Dragon-Zombie']
+      && mounts['Cactus-Zombie']
+      && mounts['BearCub-Zombie'] ) {
+        set['achievements.undeadUndertaker'] = true;
+      }
+  }
+
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+
+  return await User.update({ _id: user._id }, { $set: set }).exec();
+}
+
+module.exports = async function processUsers () {
+  let query = {
+    migration: { $ne: MIGRATION_NAME },
+    'auth.timestamps.loggedin': { $gt: new Date('2019-10-01') },
+  };
+
+  const fields = {
+    _id: 1,
+    items: 1,
+  };
+
+  while (true) { // eslint-disable-line no-constant-condition
+    const users = await User // eslint-disable-line no-await-in-loop
+      .find(query)
+      .limit(250)
+      .sort({_id: 1})
+      .select(fields)
+      .lean()
+      .exec();
+
+    if (users.length === 0) {
+      console.warn('All appropriate users found and modified.');
+      console.warn(`\n${count} users processed\n`);
+      break;
+    } else {
+      query._id = {
+        $gt: users[users.length - 1]._id,
+      };
+    }
+
+    await Promise.all(users.map(updateUser)); // eslint-disable-line no-await-in-loop
+  }
+};
--- a/migrations/archive/2019/20191031_habitoween_ladder.js
+++ b/migrations/archive/2019/20191031_habitoween_ladder.js
@@ -0,0 +1,82 @@
+/*
+ * Award Habitoween ladder items to participants in this month's Habitoween festivities
+ */
+/* eslint-disable no-console */
+
+const MIGRATION_NAME = '20191031_habitoween_ladder'; // Update when running in future years
+
+import { model as User } from '../../../website/server/models/user';
+
+const progressCount = 1000;
+let count = 0;
+
+async function updateUser (user) {
+  count++;
+
+  const set = {};
+  const inc = {
+    'items.food.Candy_Skeleton': 1,
+    'items.food.Candy_Base': 1,
+    'items.food.Candy_CottonCandyBlue': 1,
+    'items.food.Candy_CottonCandyPink': 1,
+    'items.food.Candy_Shade': 1,
+    'items.food.Candy_White': 1,
+    'items.food.Candy_Golden': 1,
+    'items.food.Candy_Zombie': 1,
+    'items.food.Candy_Desert': 1,
+    'items.food.Candy_Red': 1,
+  };
+
+  set.migration = MIGRATION_NAME;
+
+  if (user && user.items && user.items.pets && user.items.pets['JackOLantern-Glow']) {
+    set['items.mounts.JackOLantern-Glow'] = true;
+  } else if (user && user.items && user.items.mounts && user.items.mounts['JackOLantern-Ghost']) {
+    set['items.pets.JackOLantern-Glow'] = 5;
+  } else if (user && user.items && user.items.pets && user.items.pets['JackOLantern-Ghost']) {
+    set['items.mounts.JackOLantern-Ghost'] = true;
+  } else if (user && user.items && user.items.mounts && user.items.mounts['JackOLantern-Base']) {
+    set['items.pets.JackOLantern-Ghost'] = 5;
+  } else if (user && user.items && user.items.pets && user.items.pets['JackOLantern-Base']) {
+    set['items.mounts.JackOLantern-Base'] = true;
+  } else {
+    set['items.pets.JackOLantern-Base'] = 5;
+  }
+
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+  return await User.update({_id: user._id}, {$inc: inc, $set: set}).exec();
+}
+
+module.exports = async function processUsers () {
+  let query = {
+    migration: {$ne: MIGRATION_NAME},
+    'auth.timestamps.loggedin': {$gt: new Date('2019-10-01')},
+  };
+
+  const fields = {
+    _id: 1,
+    items: 1,
+  };
+
+  while (true) { // eslint-disable-line no-constant-condition
+    const users = await User // eslint-disable-line no-await-in-loop
+      .find(query)
+      .limit(250)
+      .sort({_id: 1})
+      .select(fields)
+      .lean()
+      .exec();
+
+    if (users.length === 0) {
+      console.warn('All appropriate users found and modified.');
+      console.warn(`\n${count} users processed\n`);
+      break;
+    } else {
+      query._id = {
+        $gt: users[users.length - 1],
+      };
+    }
+
+    await Promise.all(users.map(updateUser)); // eslint-disable-line no-await-in-loop
+  }
+};
--- a/migrations/challenges/sync-all-challenges.js
+++ b/migrations/challenges/sync-all-challenges.js
@@ -2,14 +2,14 @@ import { model as Challenges } from '../../website/server/models/challenge';
 import { model as User } from '../../website/server/models/user';

 async function syncChallengeToMembers (challenges) {
-  let challengSyncPromises = challenges.map(async (challenge) => {
-    let users = await User.find({
+  const challengSyncPromises = challenges.map(async challenge => {
+    const users = await User.find({
      // _id: '',
      challenges: challenge._id,
    }).exec();

-    let promises = [];
-    users.forEach((user) => {
+    const promises = [];
+    users.forEach(user => {
      promises.push(challenge.syncToUser(user));
      promises.push(challenge.save());
      promises.push(user.save());
@@ -18,11 +18,11 @@ async function syncChallengeToMembers (challenges) {
    return Promise.all(promises);
  });

-  return await Promise.all(challengSyncPromises);
+  return Promise.all(challengSyncPromises);
 }

 async function syncChallenges (lastChallengeDate) {
-  let query = {
+  const query = {
    // _id: '',
  };

@@ -30,16 +30,16 @@ async function syncChallenges (lastChallengeDate) {
    query.createdOn = { $lte: lastChallengeDate };
  }

-  let challengesFound = await Challenges.find(query)
+  const challengesFound = await Challenges.find(query)
    .limit(10)
    .sort('-createdAt')
    .exec();

-  let syncedChallenges = await syncChallengeToMembers(challengesFound)
+  const syncedChallenges = await syncChallengeToMembers(challengesFound)
    .catch(reason => console.error(reason));
-  let lastChallenge = challengesFound[challengesFound.length - 1];
+  const lastChallenge = challengesFound[challengesFound.length - 1];
  if (lastChallenge) syncChallenges(lastChallenge.createdAt);
  return syncedChallenges;
 }

-module.exports = syncChallenges;
+export default syncChallenges;
--- a/migrations/command-line/apology_gems.js
+++ b/migrations/command-line/apology_gems.js
@@ -1 +1 @@
-db.users.update({_id: {$in: ['']}}, {$inc: {balance: 0.5}}, {multi: true});
+db.users.update({ _id: { $in: [''] } }, { $inc: { balance: 0.5 } }, { multi: true });
--- a/migrations/command-line/cancelSubscription.js
+++ b/migrations/command-line/cancelSubscription.js
@@ -1,11 +1,14 @@
 // mongo habitrpg ./node_modules/moment/moment.js ./migrations/cancelSubscription.js

-// For some reason people often to contact me to cancel their sub, rather than do it online. Even when I point them to
+// For some reason people often to contact me to cancel their sub,
+// rather than do it online. Even when I point them to
 // the FAQ (http://goo.gl/1uoPGQ) they insist...

 db.users.update(
-  {_id: ''},
-  {$set: {
-    'purchased.plan.dateTerminated': moment().add('month', 1).toDate(),
-  }}
-);
+  { _id: '' },
+  {
+    $set: {
+      'purchased.plan.dateTerminated': moment().add('month', 1).toDate(),
+    },
+  },
+);
--- a/migrations/command-line/contribs_plan.js
+++ b/migrations/command-line/contribs_plan.js
@@ -1,8 +1,7 @@
 // Give contrib.level 7+ free subscription for life
 db.users.update(
-
  {
-    'contributor.level': {$gte: 7},
+    'contributor.level': { $gte: 7 },
    'purchased.plan.customerId': null,
  },

@@ -18,6 +17,6 @@ db.users.update(
    },
  },

-  {multi: true}
+  { multi: true },

-);
+);
--- a/migrations/command-line/current_period_end.js
+++ b/migrations/command-line/current_period_end.js
@@ -1,5 +1,5 @@
 // mongo habitrpg ./node_modules/moment/moment.js ./migrations/current_period_end.js
 db.users.update(
-  {_id: ''},
-  {$set: {'purchased.plan.dateTerminated': moment().add({days: 7}).toDate()}}
-);
+  { _id: '' },
+  { $set: { 'purchased.plan.dateTerminated': moment().add({ days: 7 }).toDate() } },
+);
--- a/migrations/command-line/duplicatedTasksFindAndRemove.js
+++ b/migrations/command-line/duplicatedTasksFindAndRemove.js
@@ -39,38 +39,52 @@
 //   needed. Do not miss any of them!


-let uuid = '30fb2640-7121-4968-ace5-f385e60ea6c5';
+const uuid = '30fb2640-7121-4968-ace5-f385e60ea6c5';

 db.users.aggregate([
-  {$match: {
-    _id: uuid,
-  }},
-  {$project: {
-    _id: 0, todos: 1,
-  }},
-  {$unwind: '$todos'},
-  {$group: {
-    _id: { taskid: '$todos.id' },
-    count: { $sum: 1 },
-  }},
-  {$match: {
-    count: { $gt: 1 },
-  }},
-  {$project: {
-    '_id.taskid': 1,
-  }},
-  {$group: {
-    _id: { taskid: '$todos.id' },
-    troublesomeIds: { $addToSet: '$_id.taskid' },
-  }},
-  {$project: {
-    _id: 0,
-    troublesomeIds: 1,
-  }},
-]).forEach((data) => {
+  {
+    $match: {
+      _id: uuid,
+    },
+  },
+  {
+    $project: {
+      _id: 0, todos: 1,
+    },
+  },
+  { $unwind: '$todos' },
+  {
+    $group: {
+      _id: { taskid: '$todos.id' },
+      count: { $sum: 1 },
+    },
+  },
+  {
+    $match: {
+      count: { $gt: 1 },
+    },
+  },
+  {
+    $project: {
+      '_id.taskid': 1,
+    },
+  },
+  {
+    $group: {
+      _id: { taskid: '$todos.id' },
+      troublesomeIds: { $addToSet: '$_id.taskid' },
+    },
+  },
+  {
+    $project: {
+      _id: 0,
+      troublesomeIds: 1,
+    },
+  },
+]).forEach(data => {
  // print( "\n" ); printjson(data);
-  data.troublesomeIds.forEach((taskid) => {
-    print(`non-unique task: ${  taskid}`);
+  data.troublesomeIds.forEach(taskid => {
+    print(`non-unique task: ${taskid}`); // eslint-disable-line no-restricted-globals
    db.users.update({
      _id: uuid,
      todos: { $elemMatch: { id: taskid } },
@@ -81,8 +95,7 @@ db.users.aggregate([
 });

 db.users.update(
-  {_id: uuid},
-  {$pull: { todos: { id: 'de666' } } },
-  {multi: false }
+  { _id: uuid },
+  { $pull: { todos: { id: 'de666' } } },
+  { multi: false },
 );
-
--- a/migrations/command-line/facebook_to_local.js
+++ b/migrations/command-line/facebook_to_local.js
@@ -1,10 +1,10 @@
-let oldId = '';
-let newId = '';
-let newUser = db.users.findOne({_id: newId});
+const oldId = '';
+const newId = '';
+const newUser = db.users.findOne({ _id: newId });

-db.users.update({_id: oldId}, {$set: {auth: newUser.auth}});
+db.users.update({ _id: oldId }, { $set: { auth: newUser.auth } });

-// remove the auth on the new user (which is a template account). The account will be preened automatically later,
+// remove the auth on the new user (which is a template account).
+// The account will be preened automatically later,
 // this allows us to keep the account around a few days in case there was a mistake
-db.users.update({_id: newId}, {$unset: {auth: 1}});
-
+db.users.update({ _id: newId }, { $unset: { auth: 1 } });
--- a/migrations/command-line/find_unique_user.js
+++ b/migrations/command-line/find_unique_user.js
@@ -5,8 +5,8 @@
 * Past in the text of a unique habit here to find the user, then you can restore their UUID
 */

-db.users.find().forEach((user) => {
+db.users.find().forEach(user => {
  user.tasks = user.habits.concat(user.dailys).concat(user.todos).concat(user.rewards);
-  let found = _.some(user.tasks, {text: ''});
-  if (found) printjson({id: user._id, auth: user.auth});
-});
+  const found = _.some(user.tasks, { text: '' });
+  if (found) printjson({ id: user._id, auth: user.auth });
+});
--- a/migrations/command-line/freeMonth.js
+++ b/migrations/command-line/freeMonth.js
@@ -1,32 +1,34 @@
 // mongo habitrpg ./node_modules/moment/moment.js ./migrations/freeMonth.js

 db.users.update(
-  {_id: ''},
-  {$set: {
-    'purchased.plan.customerId': 'temporary',
-    'purchased.plan.paymentMethod': 'Stripe',
-    'purchased.plan.planId': 'basic_earned',
-    'purchased.plan.dateTerminated': moment().add('month', 1).toDate(),
-  }}
+  { _id: '' },
+  {
+    $set: {
+      'purchased.plan.customerId': 'temporary',
+      'purchased.plan.paymentMethod': 'Stripe',
+      'purchased.plan.planId': 'basic_earned',
+      'purchased.plan.dateTerminated': moment().add('month', 1).toDate(),
+    },
+  },
 );
 // var m = 12;
 // db.users.update(
 //   {_id:''},
 //   {$set:{'purchased.plan':{
-//	  planId: 'basic_'+m+'mo',
-//	  paymentMethod: 'Paypal',
-//	  customerId: 'Gift',
-//	  dateCreated: new Date(),
-//	  dateTerminated: moment().add('month',m).toDate(),
-//	  dateUpdated: new Date(),
-//	  extraMonths: 0,
-//	  gemsBought: 0,
-//	  mysteryItems: [],
-//	  consecutive: {
-//	    count: 0,
-//	    offset: m,
-//	    gemCapExtra: m/3*5,
-//	    trinkets: m/3
-//	  }
+//    planId: 'basic_'+m+'mo',
+//    paymentMethod: 'Paypal',
+//    customerId: 'Gift',
+//    dateCreated: new Date(),
+//    dateTerminated: moment().add('month',m).toDate(),
+//    dateUpdated: new Date(),
+//    extraMonths: 0,
+//    gemsBought: 0,
+//    mysteryItems: [],
+//    consecutive: {
+//      count: 0,
+//      offset: m,
+//      gemCapExtra: m/3*5,
+//      trinkets: m/3
+//    }
 //   }}}
-// )
+// )
--- a/migrations/command-line/habitica_day.js
+++ b/migrations/command-line/habitica_day.js
@@ -1,5 +1,5 @@
 db.users.update(
  {},
-  {$inc: {'achievements.habiticaDays': 1}},
-  {multi: 1}
+  { $inc: { 'achievements.habiticaDays': 1 } },
+  { multi: 1 },
 );
--- a/migrations/command-line/missing_gems.js
+++ b/migrations/command-line/missing_gems.js
@@ -1 +1 @@
-db.users.update({_id: ''}, {$inc: {balance: 5}});
+db.users.update({ _id: '' }, { $inc: { balance: 5 } });
--- a/migrations/groups/add-unlimited-subscription.js
+++ b/migrations/groups/add-unlimited-subscription.js
@@ -13,7 +13,7 @@ import { model as Group } from '../../website/server/models/group';

 // @TODO: this should probably be a GroupManager library method
 async function addUnlimitedSubscription (groupId, dateTerminated) {
-  let group = await Group.findOne({_id: groupId});
+  const group = await Group.findOne({ _id: groupId });

  group.purchased.plan.customerId = 'group-unlimited';
  group.purchased.plan.dateCreated = new Date();
@@ -22,7 +22,7 @@ async function addUnlimitedSubscription (groupId, dateTerminated) {
  group.purchased.plan.planId = 'group_monthly';
  group.purchased.plan.dateTerminated = null;
  if (dateTerminated) {
-    let dateToEnd = moment(dateTerminated).toDate();
+    const dateToEnd = moment(dateTerminated).toDate();
    group.purchased.plan.dateTerminated = dateToEnd;
  }
  // group.purchased.plan.owner = ObjectId();
@@ -31,12 +31,12 @@ async function addUnlimitedSubscription (groupId, dateTerminated) {
  return group.save();
 }

-module.exports = async function addUnlimitedSubscriptionCreator () {
-  let groupId = process.argv[2];
+export default async function addUnlimitedSubscriptionCreator () {
+  const groupId = process.argv[2];

  if (!groupId) throw Error('Group ID is required');

-  let dateTerminated = process.argv[3];
+  const dateTerminated = process.argv[3];

  await addUnlimitedSubscription(groupId, dateTerminated);
-};
+}
--- a/migrations/groups/create-group.js
+++ b/migrations/groups/create-group.js
@@ -3,9 +3,9 @@ import { model as User } from '../../website/server/models/user';

 // @TODO: this should probably be a GroupManager library method
 async function createGroup (name, privacy, type, leaderId) {
-  let user = await User.findOne({_id: leaderId});
+  const user = await User.findOne({ _id: leaderId });

-  let group = new Group({
+  const group = new Group({
    name,
    privacy,
    type,
@@ -17,13 +17,11 @@ async function createGroup (name, privacy, type, leaderId) {
  return Promise.all([group.save(), user.save()]);
 }

-module.exports = async function groupCreator () {
-  let name = process.argv[2];
-  let privacy = process.argv[3];
-  let type = process.argv[4];
-  let leaderId  = process.argv[5];
+export default async function groupCreator () {
+  const name = process.argv[2];
+  const privacy = process.argv[3];
+  const type = process.argv[4];
+  const leaderId = process.argv[5];

  await createGroup(name, privacy, type, leaderId);
-};
-
-
+}
--- a/migrations/groups/habitrpg-jackalopes.js
+++ b/migrations/groups/habitrpg-jackalopes.js
@@ -1,44 +1,43 @@
 /* let migrationName = 'Jackalopes for Unlimited Subscribers'; */

 /*
- * This migration will find users with unlimited subscriptions who are also eligible for Jackalope mounts, and award them
+ * This migration will find users with unlimited subscriptions who are also eligible
+ * for Jackalope mounts, and award them
 */

 import { model as Group } from '../../website/server/models/group';
 import { model as User } from '../../website/server/models/user';

 async function handOutJackalopes () {
-  let promises = [];
-  let cursor = User.find({
+  const promises = [];
+  const cursor = User.find({
    'purchased.plan.customerId': 'habitrpg',
  }).cursor();

-  cursor.on('data', async (user) => {
-    console.log(`User: ${  user._id}`);
+  cursor.on('data', async user => {
+    console.log(`User: ${user._id}`);

    let groupList = [];
    if (user.party._id) groupList.push(user.party._id);
    groupList = groupList.concat(user.guilds);

-    let subscribedGroup =
-      await Group.findOne({
-        _id: {$in: groupList},
-        'purchased.plan.planId': 'group_monthly',
-        'purchased.plan.dateTerminated': null,
-      },
-      {_id: 1}
-      );
+    const subscribedGroup = await Group.findOne({
+      _id: { $in: groupList },
+      'purchased.plan.planId': 'group_monthly',
+      'purchased.plan.dateTerminated': null,
+    },
+    { _id: 1 });

    if (subscribedGroup) {
-      User.update({_id: user._id}, {$set: {'items.mounts.Jackalope-RoyalPurple': true}}).exec();
+      User.update({ _id: user._id }, { $set: { 'items.mounts.Jackalope-RoyalPurple': true } }).exec();
      promises.push(user.save());
    }
  });

  cursor.on('close', async () => {
    console.log('done');
-    return await Promise.all(promises);
+    return Promise.all(promises);
  });
 }

-module.exports = handOutJackalopes;
+export default handOutJackalopes;
--- a/migrations/groups/migrate-chat.js
+++ b/migrations/groups/migrate-chat.js
@@ -8,7 +8,7 @@
 */

 import { model as Group } from '../../website/server/models/group';
-import { model as Chat } from '../../website/server/models/chat';
+import { chatModel as Chat } from '../../website/server/models/message';

 async function moveGroupChatToModel (skip = 0) {
  const groups = await Group.find({})
@@ -40,7 +40,7 @@ async function moveGroupChatToModel (skip = 0) {


  const reducedPromises = promises.reduce((acc, curr) => {
-    acc = acc.concat(curr);
+    acc = acc.concat(curr); // eslint-disable-line no-param-reassign
    return acc;
  }, []);

@@ -49,4 +49,4 @@ async function moveGroupChatToModel (skip = 0) {
  moveGroupChatToModel(skip + 50);
 }

-module.exports = moveGroupChatToModel;
+export default moveGroupChatToModel;
--- a/migrations/groups/reconcile-group-plan-members.js
+++ b/migrations/groups/reconcile-group-plan-members.js
@@ -1,4 +1,4 @@
-import monk from 'monk';
+import monk from 'monk'; // eslint-disable-line import/no-extraneous-dependencies
 import nconf from 'nconf';
 import stripePayments from '../../website/server/libs/payments/stripe';

@@ -12,8 +12,8 @@ import stripePayments from '../../website/server/libs/payments/stripe';

 const CONNECTION_STRING = nconf.get('MIGRATION_CONNECT_STRING');

-let dbGroups = monk(CONNECTION_STRING).get('groups', { castIds: false });
-let dbUsers = monk(CONNECTION_STRING).get('users', { castIds: false });
+const dbGroups = monk(CONNECTION_STRING).get('groups', { castIds: false });
+const dbUsers = monk(CONNECTION_STRING).get('users', { castIds: false });

 async function fixGroupPlanMembers () {
  console.info('Group ID, Customer ID, Plan ID, Quantity, Recorded Member Count, Actual Member Count');
@@ -24,15 +24,15 @@ async function fixGroupPlanMembers () {
    {
      $and:
        [
-          {'purchased.plan.planId': {$ne: null}},
-          {'purchased.plan.planId': {$ne: ''}},
-          {'purchased.plan.customerId': {$ne: 'cus_9f0DV4g7WHRzpM'}}, // Demo groups
-          {'purchased.plan.customerId': {$ne: 'cus_9maalqDOFTrvqx'}},
+          { 'purchased.plan.planId': { $ne: null } },
+          { 'purchased.plan.planId': { $ne: '' } },
+          { 'purchased.plan.customerId': { $ne: 'cus_9f0DV4g7WHRzpM' } }, // Demo groups
+          { 'purchased.plan.customerId': { $ne: 'cus_9maalqDOFTrvqx' } },
        ],
      $or:
        [
-          {'purchased.plan.dateTerminated': null},
-          {'purchased.plan.dateTerminated': ''},
+          { 'purchased.plan.dateTerminated': null },
+          { 'purchased.plan.dateTerminated': '' },
        ],
    },
    {
@@ -40,19 +40,19 @@ async function fixGroupPlanMembers () {
        memberCount: 1,
        'purchased.plan': 1,
      },
-    }
-  ).each(async (group, {close, pause, resume}) => { // eslint-disable-line no-unused-vars
+    },
+  ).each(async (group, { close, pause, resume }) => { // eslint-disable-line no-unused-vars
    pause();
-    groupPlanCount++;
+    groupPlanCount += 1;

    const canonicalMemberCount = await dbUsers.count(
      {
        $or:
          [
-            {'party._id': group._id},
-            {guilds: group._id},
+            { 'party._id': group._id },
+            { guilds: group._id },
          ],
-      }
+      },
    );
    const incorrectMemberCount = group.memberCount !== canonicalMemberCount;

@@ -73,24 +73,24 @@ async function fixGroupPlanMembers () {
        $set: {
          memberCount: canonicalMemberCount,
        },
-      }
+      },
    );

    if (!groupUpdate) return;

-    fixedGroupCount++;
+    fixedGroupCount += 1;
    if (group.purchased.plan.paymentMethod === 'Stripe') {
      await stripePayments.chargeForAdditionalGroupMember(group);
      await dbGroups.update(
-        {_id: group._id},
-        {$set: {'purchased.plan.quantity': canonicalMemberCount + 2}}
+        { _id: group._id },
+        { $set: { 'purchased.plan.quantity': canonicalMemberCount + 2 } },
      );
    }

    if (incorrectQuantity) {
      await dbGroups.update(
-        {_id: group._id},
-        {$set: {'purchased.plan.quantity': canonicalMemberCount + 2}}
+        { _id: group._id },
+        { $set: { 'purchased.plan.quantity': canonicalMemberCount + 2 } },
      );
    }

@@ -98,10 +98,10 @@ async function fixGroupPlanMembers () {
  }).then(() => {
    console.info(`Fixed ${fixedGroupCount} out of ${groupPlanCount} active Group Plans`);
    return process.exit(0);
-  }).catch((err) => {
+  }).catch(err => {
    console.log(err);
    return process.exit(1);
  });
 }

-module.exports = fixGroupPlanMembers;
+export default fixGroupPlanMembers;
--- a/migrations/groups/update-groups-with-group-plans.js
+++ b/migrations/groups/update-groups-with-group-plans.js
@@ -5,29 +5,27 @@ let authorUuid = ''; // ... own data is done
 */

 /*
- * This migrations will iterate through all groups with a group plan a subscription and resync the free
- * subscription to all members
+ * This migrations will iterate through all groups with a group plan
+ * a subscription and resync the free subscription to all members
 */

 import { model as Group } from '../../website/server/models/group';
-import * as payments from '../../website/server/libs/payments';
+import payments from '../../website/server/libs/payments/payments';

 async function updateGroupsWithGroupPlans () {
-  let cursor = Group.find({
+  const cursor = Group.find({
    'purchased.plan.planId': 'group_monthly',
    'purchased.plan.dateTerminated': null,
  }).cursor();

-  let promises = [];
+  const promises = [];

-  cursor.on('data', (group) => {
+  cursor.on('data', group => {
    promises.push(payments.addSubscriptionToGroupUsers(group));
    promises.push(group.save());
  });

-  cursor.on('close', async () => {
-    return await Promise.all(promises);
-  });
+  cursor.on('close', async () => Promise.all(promises));
 }

-module.exports = updateGroupsWithGroupPlans;
+export default updateGroupsWithGroupPlans;
--- a/migrations/migration-runner.js
+++ b/migrations/migration-runner.js
@@ -1,4 +1,5 @@
-require('babel-register');
+/* eslint-disable import/no-commonjs */
+require('@babel/register'); // eslint-disable-line import/no-extraneous-dependencies

 // This file must use ES5, everything required can be in ES6

@@ -17,12 +18,13 @@ function setUpServer () {
 setUpServer();

 // Replace this with your migration
-const processUsers = require('');
+const processUsers = () => {}; // require('').default;
+
 processUsers()
-  .then(function success () {
+  .then(() => {
    process.exit(0);
  })
-  .catch(function failure (err) {
+  .catch(err => {
    console.log(err);
    process.exit(1);
  });
--- a/migrations/new_stuff.js
+++ b/migrations/new_stuff.js
@@ -1,19 +1,21 @@
+/* eslint-disable import/no-commonjs */
 /* let migrationName = 'new_stuff.js'; */
-let authorName = 'Sabe'; // in case script author needs to know when their ...
-let authorUuid = '7f14ed62-5408-4e1b-be83-ada62d504931'; // ... own data is done
+const authorName = 'Sabe'; // in case script author needs to know when their ...
+const authorUuid = '7f14ed62-5408-4e1b-be83-ada62d504931'; // ... own data is done

 /*
 * set the newStuff flag in all user accounts so they see a Bailey message
 */

-let monk = require('monk');
-let connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
-let dbUsers = monk(connectionString).get('users', { castIds: false });
+const monk = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
+
+const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
+const dbUsers = monk(connectionString).get('users', { castIds: false });

 function processUsers (lastId) {
  // specify a query to limit the affected users (empty for all users):
-  let query = {
-    'flags.newStuff': {$ne: true},
+  const query = {
+    'flags.newStuff': { $ne: true },
  };

  if (lastId) {
@@ -23,29 +25,31 @@ function processUsers (lastId) {
  }

  dbUsers.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 250,
-    fields: [], // specify fields we are interested in to limit retrieved data (empty if we're not reading data):
+    // specify fields we are interested in to limit retrieved data
+    // (empty if we're not reading data):
+    fields: [],
  })
    .then(updateUsers)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateUsers (users) {
  if (!users || users.length === 0) {
    console.warn('All appropriate users found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let userPromises = users.map(updateUser);
-  let lastUser = users[users.length - 1];
+  const userPromises = users.map(updateUser);
+  const lastUser = users[users.length - 1];

  return Promise.all(userPromises)
    .then(() => {
@@ -54,30 +58,31 @@ function updateUsers (users) {
 }

 function updateUser (user) {
-  count++;
+  count += 1;

-  let set = {'flags.newStuff': true};
+  const set = { 'flags.newStuff': true };

-  dbUsers.update({_id: user._id}, {$set: set});
+  dbUsers.update({ _id: user._id }, { $set: set });

-  if (count % progressCount === 0) console.warn(`${count  } ${  user._id}`);
-  if (user._id === authorUuid) console.warn(`${authorName  } processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+  if (user._id === authorUuid) console.warn(`${authorName} processed`);
 }

 function displayData () {
-  console.warn(`\n${  count  } users processed\n`);
+  console.warn(`\n${count} users processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
--- a/migrations/restock_armoire.js
+++ b/migrations/restock_armoire.js
@@ -1,18 +1,20 @@
-let migrationName = 'restock_armoire.js';
-let authorName = 'Sabe'; // in case script author needs to know when their ...
-let authorUuid = '7f14ed62-5408-4e1b-be83-ada62d504931'; // ... own data is done
+/* eslint-disable import/no-commonjs */
+const migrationName = 'restock_armoire.js';
+const authorName = 'Sabe'; // in case script author needs to know when their ...
+const authorUuid = '7f14ed62-5408-4e1b-be83-ada62d504931'; // ... own data is done

 /*
 * Remove flag stating that the Enchanted Armoire is empty, for when new equipment is added
 */

-let monk = require('monk');
-let connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
-let dbUsers = monk(connectionString).get('users', { castIds: false });
+const monk = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
+
+const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
+const dbUsers = monk(connectionString).get('users', { castIds: false });

 function processUsers (lastId) {
  // specify a query to limit the affected users (empty for all users):
-  let query = {
+  const query = {
    'flags.armoireEmpty': true,
  };

@@ -23,29 +25,31 @@ function processUsers (lastId) {
  }

  dbUsers.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 250,
-    fields: [], // specify fields we are interested in to limit retrieved data (empty if we're not reading data):
+    // specify fields we are interested in to limit retrieved data
+    // (empty if we're not reading data):
+    fields: [],
  })
    .then(updateUsers)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateUsers (users) {
  if (!users || users.length === 0) {
    console.warn('All appropriate users found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let userPromises = users.map(updateUser);
-  let lastUser = users[users.length - 1];
+  const userPromises = users.map(updateUser);
+  const lastUser = users[users.length - 1];

  return Promise.all(userPromises)
    .then(() => {
@@ -54,30 +58,31 @@ function updateUsers (users) {
 }

 function updateUser (user) {
-  count++;
+  count += 1;

-  let set = {migration: migrationName, 'flags.armoireEmpty': false};
+  const set = { migration: migrationName, 'flags.armoireEmpty': false };

-  dbUsers.update({_id: user._id}, {$set: set});
+  dbUsers.update({ _id: user._id }, { $set: set });

-  if (count % progressCount === 0) console.warn(`${count  } ${  user._id}`);
-  if (user._id === authorUuid) console.warn(`${authorName  } processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+  if (user._id === authorUuid) console.warn(`${authorName} processed`);
 }

 function displayData () {
-  console.warn(`\n${  count  } users processed\n`);
+  console.warn(`\n${count} users processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
--- a/migrations/restock_armoire_for_users_that_need_it.js
+++ b/migrations/restock_armoire_for_users_that_need_it.js
@@ -1,6 +1,7 @@
-let migrationName = 'restock_armoire_for_users_that_need_it.js';
-let authorName = 'Alys (ALittleYellowSpider)'; // in case script author needs to know when their ...
-let authorUuid = '3e595299-3d8a-4a10-bfe0-88f555e4aa0c'; // ... own data is done
+/* eslint-disable import/no-commonjs */
+const migrationName = 'restock_armoire_for_users_that_need_it.js';
+const authorName = 'Alys (ALittleYellowSpider)'; // in case script author needs to know when their ...
+const authorUuid = '3e595299-3d8a-4a10-bfe0-88f555e4aa0c'; // ... own data is done

 /*
 * Remove flag stating that the Enchanted Armoire is empty,
@@ -18,16 +19,17 @@ let authorUuid = '3e595299-3d8a-4a10-bfe0-88f555e4aa0c'; // ... own data is done
 *
 */

-let connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
+const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE

-let monk = require('monk');
-let dbUsers = monk(connectionString).get('users', { castIds: false });
+const monk = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
+
+const dbUsers = monk(connectionString).get('users', { castIds: false });


 function processUsers (lastId) {
  // specify a query to limit the affected users (empty for all users):
-  let query = {
-    'auth.timestamps.loggedin': {$gt: new Date('2016-01-04')},
+  const query = {
+    'auth.timestamps.loggedin': { $gt: new Date('2016-01-04') },
    // '_id': authorUuid // FOR TESTING
  };

@@ -35,7 +37,7 @@ function processUsers (lastId) {
  /* let fields = {
    'flags.armoireEmpty': 1,
    'items.gear.owned': 1,
-  };*/
+  }; */

  if (lastId) {
    query._id = {
@@ -44,32 +46,34 @@ function processUsers (lastId) {
  }

  dbUsers.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 250,
+    // specify fields we are interested in to limit retrieved data
+    // (empty if we're not reading data):
    fields: {
      'flags.armoireEmpty': 1,
      'items.gear.owned': 1,
-    }, // specify fields we are interested in to limit retrieved data (empty if we're not reading data):
+    },
  })
    .then(updateUsers)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateUsers (users) {
  if (!users || users.length === 0) {
    console.warn('All appropriate users found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let userPromises = users.map(updateUser);
-  let lastUser = users[users.length - 1];
+  const userPromises = users.map(updateUser);
+  const lastUser = users[users.length - 1];

  return Promise.all(userPromises)
    .then(() => {
@@ -78,19 +82,69 @@ function updateUsers (users) {
 }

 function updateUser (user) {
-  count++;
+  count += 1;

-  let set = {migration: migrationName, 'flags.armoireEmpty': false};
+  const set = { migration: migrationName, 'flags.armoireEmpty': false };


  if (user.flags.armoireEmpty) {
    // this user believes their armoire has no more items in it
-    if (user.items.gear.owned.weapon_armoire_barristerGavel && user.items.gear.owned.armor_armoire_barristerRobes && user.items.gear.owned.head_armoire_jesterCap && user.items.gear.owned.armor_armoire_jesterCostume && user.items.gear.owned.head_armoire_barristerWig && user.items.gear.owned.weapon_armoire_jesterBaton && user.items.gear.owned.weapon_armoire_lunarSceptre && user.items.gear.owned.armor_armoire_gladiatorArmor && user.items.gear.owned.weapon_armoire_basicCrossbow && user.items.gear.owned.head_armoire_gladiatorHelm && user.items.gear.owned.armor_armoire_lunarArmor && user.items.gear.owned.head_armoire_redHairbow && user.items.gear.owned.head_armoire_violetFloppyHat && user.items.gear.owned.head_armoire_rancherHat && user.items.gear.owned.shield_armoire_gladiatorShield && user.items.gear.owned.head_armoire_blueHairbow && user.items.gear.owned.weapon_armoire_mythmakerSword && user.items.gear.owned.head_armoire_royalCrown && user.items.gear.owned.head_armoire_hornedIronHelm && user.items.gear.owned.weapon_armoire_rancherLasso && user.items.gear.owned.armor_armoire_rancherRobes && user.items.gear.owned.armor_armoire_hornedIronArmor && user.items.gear.owned.armor_armoire_goldenToga && user.items.gear.owned.weapon_armoire_ironCrook && user.items.gear.owned.head_armoire_goldenLaurels && user.items.gear.owned.head_armoire_redFloppyHat && user.items.gear.owned.armor_armoire_plagueDoctorOvercoat && user.items.gear.owned.head_armoire_plagueDoctorHat && user.items.gear.owned.weapon_armoire_goldWingStaff && user.items.gear.owned.head_armoire_yellowHairbow && user.items.gear.owned.eyewear_armoire_plagueDoctorMask && user.items.gear.owned.head_armoire_blackCat && user.items.gear.owned.weapon_armoire_batWand && user.items.gear.owned.head_armoire_orangeCat && user.items.gear.owned.shield_armoire_midnightShield && user.items.gear.owned.armor_armoire_royalRobes && user.items.gear.owned.head_armoire_blueFloppyHat && user.items.gear.owned.shield_armoire_royalCane && user.items.gear.owned.weapon_armoire_shepherdsCrook && user.items.gear.owned.armor_armoire_shepherdRobes && user.items.gear.owned.head_armoire_shepherdHeaddress && user.items.gear.owned.weapon_armoire_blueLongbow && user.items.gear.owned.weapon_armoire_crystalCrescentStaff && user.items.gear.owned.head_armoire_crystalCrescentHat && user.items.gear.owned.armor_armoire_dragonTamerArmor && user.items.gear.owned.head_armoire_dragonTamerHelm && user.items.gear.owned.armor_armoire_crystalCrescentRobes && user.items.gear.owned.shield_armoire_dragonTamerShield && user.items.gear.owned.weapon_armoire_glowingSpear) {
+    if (
+      user.items.gear.owned.weapon_armoire_barristerGavel
+      && user.items.gear.owned.armor_armoire_barristerRobes
+      && user.items.gear.owned.head_armoire_jesterCap
+      && user.items.gear.owned.armor_armoire_jesterCostume
+      && user.items.gear.owned.head_armoire_barristerWig
+      && user.items.gear.owned.weapon_armoire_jesterBaton
+      && user.items.gear.owned.weapon_armoire_lunarSceptre
+      && user.items.gear.owned.armor_armoire_gladiatorArmor
+      && user.items.gear.owned.weapon_armoire_basicCrossbow
+      && user.items.gear.owned.head_armoire_gladiatorHelm
+      && user.items.gear.owned.armor_armoire_lunarArmor
+      && user.items.gear.owned.head_armoire_redHairbow
+      && user.items.gear.owned.head_armoire_violetFloppyHat
+      && user.items.gear.owned.head_armoire_rancherHat
+      && user.items.gear.owned.shield_armoire_gladiatorShield
+      && user.items.gear.owned.head_armoire_blueHairbow
+      && user.items.gear.owned.weapon_armoire_mythmakerSword
+      && user.items.gear.owned.head_armoire_royalCrown
+      && user.items.gear.owned.head_armoire_hornedIronHelm
+      && user.items.gear.owned.weapon_armoire_rancherLasso
+      && user.items.gear.owned.armor_armoire_rancherRobes
+      && user.items.gear.owned.armor_armoire_hornedIronArmor
+      && user.items.gear.owned.armor_armoire_goldenToga
+      && user.items.gear.owned.weapon_armoire_ironCrook
+      && user.items.gear.owned.head_armoire_goldenLaurels
+      && user.items.gear.owned.head_armoire_redFloppyHat
+      && user.items.gear.owned.armor_armoire_plagueDoctorOvercoat
+      && user.items.gear.owned.head_armoire_plagueDoctorHat
+      && user.items.gear.owned.weapon_armoire_goldWingStaff
+      && user.items.gear.owned.head_armoire_yellowHairbow
+      && user.items.gear.owned.eyewear_armoire_plagueDoctorMask
+      && user.items.gear.owned.head_armoire_blackCat
+      && user.items.gear.owned.weapon_armoire_batWand
+      && user.items.gear.owned.head_armoire_orangeCat
+      && user.items.gear.owned.shield_armoire_midnightShield
+      && user.items.gear.owned.armor_armoire_royalRobes
+      && user.items.gear.owned.head_armoire_blueFloppyHat
+      && user.items.gear.owned.shield_armoire_royalCane
+      && user.items.gear.owned.weapon_armoire_shepherdsCrook
+      && user.items.gear.owned.armor_armoire_shepherdRobes
+      && user.items.gear.owned.head_armoire_shepherdHeaddress
+      && user.items.gear.owned.weapon_armoire_blueLongbow
+      && user.items.gear.owned.weapon_armoire_crystalCrescentStaff
+      && user.items.gear.owned.head_armoire_crystalCrescentHat
+      && user.items.gear.owned.armor_armoire_dragonTamerArmor
+      && user.items.gear.owned.head_armoire_dragonTamerHelm
+      && user.items.gear.owned.armor_armoire_crystalCrescentRobes
+      && user.items.gear.owned.shield_armoire_dragonTamerShield
+      && user.items.gear.owned.weapon_armoire_glowingSpear
+    ) {
      // this user does have all the armoire items so we don't change the flag
    // console.log("don't change: " + user._id); // FOR TESTING
    } else {
      // console.log("change: " + user._id); // FOR TESTING
-      dbUsers.update({_id: user._id}, {$set: set});
+      dbUsers.update({ _id: user._id }, { $set: set });
    }
  } else {
    // this user already has armoire marked as containing items to be bought
@@ -98,24 +152,25 @@ function updateUser (user) {
    // console.log("DON'T CHANGE: " + user._id); // FOR TESTING
  }

-  if (count % progressCount === 0) console.warn(`${count  } ${  user._id}`);
-  if (user._id === authorUuid) console.warn(`${authorName  } processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+  if (user._id === authorUuid) console.warn(`${authorName} processed`);
 }

 function displayData () {
-  console.warn(`\n${  count  } users processed\n`);
+  console.warn(`\n${count} users processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
--- a/migrations/restore-profile-data.js
+++ b/migrations/restore-profile-data.js
@@ -1,22 +1,25 @@
+/* eslint-disable import/no-commonjs */
 /* let migrationName = 'restore_profile_data.js'; */
-let authorName = 'ThehollidayInn'; // in case script author needs to know when their ...
-let authorUuid = ''; // ... own data is done
+const authorName = 'ThehollidayInn'; // in case script author needs to know when their ...
+const authorUuid = ''; // ... own data is done

 /*
 * Check if users have empty profile data in new database and update it with old database info
 */

-let monk = require('monk');
-let connectionString = ''; // FOR TEST DATABASE
-let dbUsers = monk(connectionString).get('users', { castIds: false });
+const monk = require('monk'); // eslint-disable-line import/no-extraneous-dependencies

-let monk2 = require('monk');
-let oldDbConnectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
-let olDbUsers = monk2(oldDbConnectionString).get('users', { castIds: false });
+const connectionString = ''; // FOR TEST DATABASE
+const dbUsers = monk(connectionString).get('users', { castIds: false });
+
+const monk2 = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
+
+const oldDbConnectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
+const olDbUsers = monk2(oldDbConnectionString).get('users', { castIds: false });

 function processUsers (lastId) {
  // specify a query to limit the affected users (empty for all users):
-  let query = {
+  const query = {
    // 'profile.name': 'profile name not found',
    'profile.blurb': null,
    // 'auth.timestamps.loggedin': {$gt: new Date('11/30/2016')},
@@ -29,49 +32,47 @@ function processUsers (lastId) {
  }

  dbUsers.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 250,
    fields: ['_id', 'profile', 'auth.timestamps.loggedin'], // specify fields we are interested in to limit retrieved data (empty if we're not reading data):
  })
    .then(updateUsers)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateUsers (users) {
  if (!users || users.length === 0) {
    console.warn('All appropriate users found and modified.');
    setTimeout(displayData, 300000);
-    return;
+    return null;
  }

-  let userPaymentPromises = users.map(updateUser);
-  let lastUser = users[users.length - 1];
+  const userPaymentPromises = users.map(updateUser);
+  const lastUser = users[users.length - 1];

  return Promise.all(userPaymentPromises)
-    .then(() => {
-      return processUsers(lastUser._id);
-    });
+    .then(() => processUsers(lastUser._id));
 }

 function updateUser (user) {
-  count++;
+  count += 1;

  if (!user.profile.name || user.profile.name === 'profile name not found' || !user.profile.imageUrl || !user.profile.blurb) {
-    return olDbUsers.findOne({_id: user._id}, '_id profile')
-      .then((oldUserData) => {
-        if (!oldUserData) return;
+    return olDbUsers.findOne({ _id: user._id }, '_id profile')
+      .then(oldUserData => {
+        if (!oldUserData) return null;
        // specify user data to change:
-        let set = {};
+        const set = {};

-        if (oldUserData.profile.name === 'profile name not found') return;
+        if (oldUserData.profile.name === 'profile name not found') return null;

-        let userNeedsProfileName = !user.profile.name || user.profile.name === 'profile name not found';
+        const userNeedsProfileName = !user.profile.name || user.profile.name === 'profile name not found';
        if (userNeedsProfileName && oldUserData.profile.name) {
          set['profile.name'] = oldUserData.profile.name;
        }
@@ -86,29 +87,34 @@ function updateUser (user) {

        if (Object.keys(set).length !== 0 && set.constructor === Object) {
          console.log(set);
-          return dbUsers.update({_id: user._id}, {$set: set});
+          return dbUsers.update({ _id: user._id }, { $set: set });
        }
+
+        return null;
      });
  }

-  if (count % progressCount === 0) console.warn(`${count  } ${  user._id}`);
-  if (user._id === authorUuid) console.warn(`${authorName  } processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+  if (user._id === authorUuid) console.warn(`${authorName} processed`);
+
+  return null;
 }

 function displayData () {
-  console.warn(`\n${  count  } users processed\n`);
+  console.warn(`\n${count} users processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
--- a/migrations/s3-upload.js
+++ b/migrations/s3-upload.js
@@ -1,8 +1,10 @@
-let request = require('superagent');
-let last = require('lodash/last');
-let AWS = require('aws-sdk');
+/* eslint-disable import/no-commonjs */
+const request = require('superagent');
+const last = require('lodash/last');
+const AWS = require('aws-sdk');
+
+const config = require('../config');

-let config = require('../config');
 const S3_DIRECTORY = 'mobileApp/images'; // config.S3.SPRITES_DIRECTORY;

 AWS.config.update({
@@ -11,8 +13,8 @@ AWS.config.update({
  // region: config.get('S3_REGION'),
 });

-let BUCKET_NAME = config.S3.bucket;
-let s3 = new AWS.S3();
+const BUCKET_NAME = config.S3.bucket;
+const s3 = new AWS.S3();

 // Adapted from http://stackoverflow.com/a/22210077/2601552
 function uploadFile (buffer, fileName) {
@@ -21,7 +23,7 @@ function uploadFile (buffer, fileName) {
      Body: buffer,
      Key: fileName,
      Bucket: BUCKET_NAME,
-    }, (error) => {
+    }, error => {
      if (error) {
        reject(error);
      } else {
@@ -33,9 +35,9 @@ function uploadFile (buffer, fileName) {
 }

 function getFileName (file) {
-  let piecesOfPath = file.split('/');
-  let name = last(piecesOfPath);
-  let fullName = S3_DIRECTORY + name;
+  const piecesOfPath = file.split('/');
+  const name = last(piecesOfPath);
+  const fullName = S3_DIRECTORY + name;

  return fullName;
 }
@@ -44,36 +46,32 @@ function getFileFromUrl (url) {
  return new Promise((resolve, reject) => {
    request.get(url).end((err, res) => {
      if (err) return reject(err);
-      let file = res.body;
-      resolve(file);
+      const file = res.body;
+      return resolve(file);
    });
  });
 }

 let commit = '78f94e365c72cc58f66857d5941105638db7d35c';
 commit = 'df0dbaba636c9ce424cc7040f7bd7fc1aa311015';
-let gihuburl = `https://api.github.com/repos/HabitRPG/habitica/commits/${commit}`;
+const gihuburl = `https://api.github.com/repos/HabitRPG/habitica/commits/${commit}`;


 let currentIndex = 0;

 function uploadToS3 (start, end, filesUrls) {
-  let urls = filesUrls.slice(start, end);
+  const urls = filesUrls.slice(start, end);

  if (urls.length === 0) {
    console.log('done');
    return;
  }

-  let promises = urls.map(fullUrl => {
-    return getFileFromUrl(fullUrl)
-      .then((buffer) => {
-        return uploadFile(buffer, getFileName(fullUrl));
-      });
-  });
+  const promises = urls.map(fullUrl => getFileFromUrl(fullUrl)
+    .then(buffer => uploadFile(buffer, getFileName(fullUrl))));
  console.log(promises.length);

-  return Promise.all(promises)
+  Promise.all(promises)
    .then(() => {
      currentIndex += 50;
      uploadToS3(currentIndex, currentIndex + 50, filesUrls);
@@ -86,12 +84,10 @@ function uploadToS3 (start, end, filesUrls) {
 request.get(gihuburl)
  .end((err, res) => {
    console.log(err);
-    let files = res.body.files;
+    const { files } = res.body;

    let filesUrls = [''];
-    filesUrls = files.map(file => {
-      return file.raw_url;
-    });
+    filesUrls = files.map(file => file.raw_url);

    uploadToS3(currentIndex, currentIndex + 50, filesUrls);
  });
--- a/migrations/tasks/habits-one-history-entry-per-day-challenges.js
+++ b/migrations/tasks/habits-one-history-entry-per-day-challenges.js
@@ -1,21 +1,23 @@
+/* eslint-disable import/no-commonjs */
 // const migrationName = 'habits-one-history-entry-per-day';
 // const authorName = 'paglias'; // in case script author needs to know when their ...
 // const authorUuid = 'ed4c688c-6652-4a92-9d03-a5a79844174a'; // ... own data is done

 /*
- * Iterates over all habits and condense multiple history entries for the same day into a single entry
+ * Iterates over all habits and condense multiple history entries for the same day into a single one
 */

-const monk = require('monk');
+const monk = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
 const _ = require('lodash');
 const moment = require('moment');
+
 const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
 const dbTasks = monk(connectionString).get('tasks', { castIds: false });

 function processChallengeHabits (lastId) {
-  let query = {
-    'challenge.id': {$exists: true},
-    userId: {$exists: false},
+  const query = {
+    'challenge.id': { $exists: true },
+    userId: { $exists: false },
    type: 'habit',
  };

@@ -26,37 +28,35 @@ function processChallengeHabits (lastId) {
  }

  dbTasks.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 500,
  })
    .then(updateChallengeHabits)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateChallengeHabits (habits) {
  if (!habits || habits.length === 0) {
    console.warn('All appropriate challenge habits found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let habitsPromises = habits.map(updateChallengeHabit);
-  let lastHabit = habits[habits.length - 1];
+  const habitsPromises = habits.map(updateChallengeHabit);
+  const lastHabit = habits[habits.length - 1];

  return Promise.all(habitsPromises)
-    .then(() => {
-      return processChallengeHabits(lastHabit._id);
-    });
+    .then(() => processChallengeHabits(lastHabit._id));
 }

 function updateChallengeHabit (habit) {
-  count++;
+  count += 1;

  if (habit && habit.history && habit.history.length > 0) {
    // First remove missing entries
@@ -76,13 +76,12 @@ function updateChallengeHabit (habit) {
          entry.scoreDirection = entry.value > previousValue ? 'up' : 'down';
        }
      })
-      .groupBy(entry => { // group entries by aggregateBy
-        return moment(entry.date).format('YYYYMMDD');
-      })
+      // group entries by aggregateBy
+      .groupBy(entry => moment(entry.date).format('YYYYMMDD'))
      .toPairs() // [key, entry]
      .sortBy(([key]) => key) // sort by date
      .map(keyEntryPair => {
-        let entries = keyEntryPair[1]; // 1 is entry, 0 is key
+        const entries = keyEntryPair[1]; // 1 is entry, 0 is key
        let scoredUp = 0;
        let scoredDown = 0;

@@ -107,32 +106,34 @@ function updateChallengeHabit (habit) {
      })
      .value();

-    return dbTasks.update({_id: habit._id}, {
-      $set: {history: habit.history},
+    return dbTasks.update({ _id: habit._id }, {
+      $set: { history: habit.history },
    });
  }

-  if (count % progressCount === 0) console.warn(`${count  } habits processed`);
+  if (count % progressCount === 0) console.warn(`${count} habits processed`);
+  return null;
 }

 function displayData () {
-  console.warn(`\n${  count  } tasks processed\n`);
+  console.warn(`\n${count} tasks processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
  process.exit(code);
 }

-module.exports = processChallengeHabits;
+export default processChallengeHabits;
--- a/migrations/tasks/habits-one-history-entry-per-day-users.js
+++ b/migrations/tasks/habits-one-history-entry-per-day-users.js
@@ -1,21 +1,23 @@
+/* eslint-disable import/no-commonjs */
 const migrationName = 'habits-one-history-entry-per-day';
 const authorName = 'paglias'; // in case script author needs to know when their ...
 const authorUuid = 'ed4c688c-6652-4a92-9d03-a5a79844174a'; // ... own data is done

 /*
- * Iterates over all habits and condense multiple history entries for the same day into a single entry
+ * Iterates over all habits and condense multiple history entries for the same day into a single one
 */

-const monk = require('monk');
+const monk = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
 const _ = require('lodash');
 const moment = require('moment');
+
 const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
 const dbTasks = monk(connectionString).get('tasks', { castIds: false });
 const dbUsers = monk(connectionString).get('users', { castIds: false });

 function processUsers (lastId) {
-  let query = {
-    migration: {$ne: migrationName},
+  const query = {
+    migration: { $ne: migrationName },
  };

  if (lastId) {
@@ -25,34 +27,32 @@ function processUsers (lastId) {
  }

  dbUsers.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 50, // just 50 users per time since we have to process all their habits as well
    fields: ['_id', 'preferences.timezoneOffset', 'preferences.dayStart'],
  })
    .then(updateUsers)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateUsers (users) {
  if (!users || users.length === 0) {
    console.warn('All appropriate users and their tasks found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let usersPromises = users.map(updateUser);
-  let lastUser = users[users.length - 1];
+  const usersPromises = users.map(updateUser);
+  const lastUser = users[users.length - 1];

  return Promise.all(usersPromises)
-    .then(() => {
-      return processUsers(lastUser._id);
-    });
+    .then(() => processUsers(lastUser._id));
 }

 function updateHabit (habit, timezoneOffset, dayStart) {
@@ -82,7 +82,7 @@ function updateHabit (habit, timezoneOffset, dayStart) {
      .toPairs() // [key, entry]
      .sortBy(([key]) => key) // sort by date
      .map(keyEntryPair => {
-        let entries = keyEntryPair[1]; // 1 is entry, 0 is key
+        const entries = keyEntryPair[1]; // 1 is entry, 0 is key
        let scoredUp = 0;
        let scoredDown = 0;

@@ -107,57 +107,56 @@ function updateHabit (habit, timezoneOffset, dayStart) {
      })
      .value();

-    return dbTasks.update({_id: habit._id}, {
-      $set: {history: habit.history},
+    return dbTasks.update({ _id: habit._id }, {
+      $set: { history: habit.history },
    });
  }
+
+  return null;
 }

 function updateUser (user) {
-  count++;
+  count += 1;

-  const timezoneOffset = user.preferences.timezoneOffset;
-  const dayStart = user.preferences.dayStart;
+  const { timezoneOffset } = user.preferences;
+  const { dayStart } = user.preferences;

-  if (count % progressCount === 0) console.warn(`${count  } ${  user._id}`);
-  if (user._id === authorUuid) console.warn(`${authorName  } being processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+  if (user._id === authorUuid) console.warn(`${authorName} being processed`);

  return dbTasks.find({
    type: 'habit',
    userId: user._id,
  })
-    .then(habits => {
-      return Promise.all(habits.map(habit => updateHabit(habit, timezoneOffset, dayStart)));
-    })
-    .then(() => {
-      return dbUsers.update({_id: user._id}, {
-        $set: {migration: migrationName},
-      });
-    })
-    .catch((err) => {
+    .then(habits => Promise.all(habits.map(habit => updateHabit(habit, timezoneOffset, dayStart))))
+    .then(() => dbUsers.update({ _id: user._id }, {
+      $set: { migration: migrationName },
+    }))
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

 function displayData () {
-  console.warn(`\n${  count  } tasks processed\n`);
+  console.warn(`\n${count} tasks processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
  process.exit(code);
 }

-module.exports = processUsers;
+export default processUsers;
--- a/migrations/tasks/tasks-set-everyX.js
+++ b/migrations/tasks/tasks-set-everyX.js
@@ -1,18 +1,19 @@
+import monk from 'monk'; // eslint-disable-line import/no-extraneous-dependencies
 /* let migrationName = 'tasks-set-everyX'; */
-let authorName = 'Sabe'; // in case script author needs to know when their ...
-let authorUuid = '7f14ed62-5408-4e1b-be83-ada62d504931'; // ... own data is done
+const authorName = 'Sabe'; // in case script author needs to know when their ...
+const authorUuid = '7f14ed62-5408-4e1b-be83-ada62d504931'; // ... own data is done

 /*
- * Iterates over all tasks and sets invalid everyX values (less than 0 or more than 9999 or not an int) field to 0
+ * Iterates over all tasks and sets invalid everyX values
+ * (less than 0 or more than 9999 or not an int) field to 0
 */

-let monk = require('monk');
-let connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true';
-let dbTasks = monk(connectionString).get('tasks', { castIds: false });
+const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true';
+const dbTasks = monk(connectionString).get('tasks', { castIds: false });

 function processTasks (lastId) {
  // specify a query to limit the affected tasks (empty for all tasks):
-  let query = {
+  const query = {
    type: 'daily',
    everyX: {
      $not: {
@@ -30,64 +31,63 @@ function processTasks (lastId) {
  }

  dbTasks.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 250,
    fields: [],
  })
    .then(updateTasks)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateTasks (tasks) {
  if (!tasks || tasks.length === 0) {
    console.warn('All appropriate tasks found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let taskPromises = tasks.map(updatetask);
-  let lasttask = tasks[tasks.length - 1];
+  const taskPromises = tasks.map(updatetask);
+  const lasttask = tasks[tasks.length - 1];

  return Promise.all(taskPromises)
-    .then(() => {
-      return processTasks(lasttask._id);
-    });
+    .then(() => processTasks(lasttask._id));
 }

 function updatetask (task) {
-  count++;
-  let set = {everyX: 0};
+  count += 1;
+  const set = { everyX: 0 };

-  dbTasks.update({_id: task._id}, {$set: set});
+  dbTasks.update({ _id: task._id }, { $set: set });

-  if (count % progressCount === 0) console.warn(`${count  } ${  task._id}`);
-  if (task._id === authorUuid) console.warn(`${authorName  } processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${task._id}`);
+  if (task._id === authorUuid) console.warn(`${authorName} processed`);
 }

 function displayData () {
-  console.warn(`\n${  count  } tasks processed\n`);
+  console.warn(`\n${count} tasks processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
  process.exit(code);
 }

-module.exports = processTasks;
+export default processTasks;
--- a/migrations/tasks/tasks-set-yesterdailies.js
+++ b/migrations/tasks/tasks-set-yesterdailies.js
@@ -1,28 +1,31 @@
 /* let migrationName = 'tasks-set-yesterdaily'; */
-let authorName = 'TheHollidayInn'; // in case script author needs to know when their ...
-let authorUuid = ''; // ... own data is done
+// ... own data is done

 /*
 * Iterates over all tasks and sets the yseterDaily field to True
 */

-import monk from 'monk';
+import monk from 'monk'; // eslint-disable-line import/no-extraneous-dependencies

-let connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
-let dbTasks = monk(connectionString).get('tasks', { castIds: false });
+const authorName = 'TheHollidayInn'; // in case script author needs to know when their ...
+const authorUuid = '';

-let progressCount = 1000;
+const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE
+const dbTasks = monk(connectionString).get('tasks', { castIds: false });
+
+const progressCount = 1000;
 let count = 0;

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
@@ -30,39 +33,37 @@ function exiting (code, msg) {
 }

 function displayData () {
-  console.warn(`\n${  count  } tasks processed\n`);
+  console.warn(`\n${count} tasks processed\n`);
  return exiting(0);
 }

 function updatetask (task) {
-  count++;
-  let set = {yesterDaily: true};
+  count += 1;
+  const set = { yesterDaily: true };

-  dbTasks.update({_id: task._id}, {$set: set});
+  dbTasks.update({ _id: task._id }, { $set: set });

-  if (count % progressCount === 0) console.warn(`${count  } ${  task._id}`);
-  if (task._id === authorUuid) console.warn(`${authorName  } processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${task._id}`);
+  if (task._id === authorUuid) console.warn(`${authorName} processed`);
 }

 function updateTasks (tasks) {
  if (!tasks || tasks.length === 0) {
    console.warn('All appropriate tasks found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let taskPromises = tasks.map(updatetask);
-  let lasttask = tasks[tasks.length - 1];
+  const taskPromises = tasks.map(updatetask);
+  const lasttask = tasks[tasks.length - 1];

  return Promise.all(taskPromises)
-    .then(() => {
-      return processTasks(lasttask._id); // eslint-disable-line no-use-before-define
-    });
+    .then(() => processTasks(lasttask._id)); // eslint-disable-line no-use-before-define
 }

 function processTasks (lastId) {
  // specify a query to limit the affected tasks (empty for all tasks):
-  let query = {
+  const query = {
    yesterDaily: false,
  };

@@ -73,16 +74,18 @@ function processTasks (lastId) {
  }

  dbTasks.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 250,
-    fields: [ // specify fields we are interested in to limit retrieved data (empty if we're not reading data):
+    // specify fields we are interested in to limit retrieved data
+    // (empty if we're not reading data):
+    fields: [
    ],
  })
    .then(updateTasks)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-module.exports = processTasks;
+export default processTasks;
--- a/migrations/users/account-transfer.js
+++ b/migrations/users/account-transfer.js
@@ -8,29 +8,30 @@ let authorUuid = ''; // ... own data is done
 * This migraition will copy user data from prod to test
 */

-const monk = require('monk');
+import monk from 'monk'; // eslint-disable-line import/no-extraneous-dependencies
+
 const connectionString = '';
 const Users = monk(connectionString).get('users', { castIds: false });

-module.exports = async function accountTransfer () {
+export default async function accountTransfer () {
  const fromAccountId = '';
  const toAccountId = '';

-  const fromAccount = await Users.findOne({_id: fromAccountId});
-  const toAccount = await Users.findOne({_id: toAccountId});
+  const fromAccount = await Users.findOne({ _id: fromAccountId });
+  const toAccount = await Users.findOne({ _id: toAccountId });

-  const newMounts = Object.assign({}, fromAccount.items.mounts, toAccount.items.mounts);
-  const newPets = Object.assign({}, fromAccount.items.pets, toAccount.items.pets);
-  const newBackgrounds = Object.assign({}, fromAccount.purchased.background, toAccount.purchased.background);
+  const newMounts = { ...fromAccount.items.mounts, ...toAccount.items.mounts };
+  const newPets = { ...fromAccount.items.pets, ...toAccount.items.pets };
+  const newBackgrounds = { ...fromAccount.purchased.background, ...toAccount.purchased.background };

-  await Users.update({_id: toAccountId}, {
+  await Users.update({ _id: toAccountId }, {
    $set: {
      'items.pets': newPets,
      'items.mounts': newMounts,
      'purchased.background': newBackgrounds,
    },
  })
-    .then((result) => {
+    .then(result => {
      console.log(result);
    });
-};
+}
--- a/migrations/users/achievement-restore.js
+++ b/migrations/users/achievement-restore.js
@@ -8,7 +8,8 @@ const authorUuid = ''; // ... own data is done
 * This migraition will copy user data from prod to test
 */

-const monk = require('monk');
+import monk from 'monk'; // eslint-disable-line import/no-extraneous-dependencies
+
 const connectionString = 'mongodb://localhost/new-habit';
 const Users = monk(connectionString).get('users', { castIds: false });

@@ -19,15 +20,17 @@ function getAchievementUpdate (newUser, oldUser) {
  const oldAchievements = oldUser.achievements;
  const newAchievements = newUser.achievements;

-  let achievementsUpdate = Object.assign({}, newAchievements);
+  const achievementsUpdate = { ...newAchievements };

  // ultimateGearSets
  if (!achievementsUpdate.ultimateGearSets && oldAchievements.ultimateGearSets) {
    achievementsUpdate.ultimateGearSets = oldAchievements.ultimateGearSets;
  } else if (oldAchievements.ultimateGearSets) {
-    for (let index in oldAchievements.ultimateGearSets) {
-      if (oldAchievements.ultimateGearSets[index]) achievementsUpdate.ultimateGearSets[index] = true;
-    }
+    Object.keys(oldAchievements.ultimateGearSets).forEach(index => {
+      if (oldAchievements.ultimateGearSets[index]) {
+        achievementsUpdate.ultimateGearSets[index] = true;
+      }
+    });
  }

  // challenges
@@ -37,57 +40,57 @@ function getAchievementUpdate (newUser, oldUser) {

  // Quests
  if (!achievementsUpdate.quests) achievementsUpdate.quests = {};
-  for (let index in oldAchievements.quests) {
+  Object.keys(oldAchievements.quests).forEach(index => {
    if (!achievementsUpdate.quests[index]) {
      achievementsUpdate.quests[index] = oldAchievements.quests[index];
    } else {
      achievementsUpdate.quests[index] += oldAchievements.quests[index];
    }
-  }
+  });

  // Rebirth level
  if (achievementsUpdate.rebirthLevel) {
-    achievementsUpdate.rebirthLevel = Math.max(achievementsUpdate.rebirthLevel, oldAchievements.rebirthLevel);
+    achievementsUpdate.rebirthLevel = Math.max(
+      achievementsUpdate.rebirthLevel, oldAchievements.rebirthLevel,
+    );
  } else if (oldAchievements.rebirthLevel) {
    achievementsUpdate.rebirthLevel = oldAchievements.rebirthLevel;
  }

  // All others
  const indexsToIgnore = ['ultimateGearSets', 'challenges', 'quests', 'rebirthLevel'];
-  for (let index in oldAchievements) {
-    if (indexsToIgnore.indexOf(index) !== -1) continue; // eslint-disable-line no-continue
+  Object.keys(oldAchievements).forEach(index => {
+    if (indexsToIgnore.indexOf(index) !== -1) return;

-    if (!achievementsUpdate[index])  {
+    if (!achievementsUpdate[index]) {
      achievementsUpdate[index] = oldAchievements[index];
-      continue; // eslint-disable-line no-continue
+      return;
    }

    if (Number.isInteger(oldAchievements[index])) {
      achievementsUpdate[index] += oldAchievements[index];
    } else if (oldAchievements[index] === true) achievementsUpdate[index] = true;
-  }
+  });

  return achievementsUpdate;
 }

-module.exports = async function achievementRestore () {
+export default async function achievementRestore () {
  const userIds = [
  ];

-  /* eslint-disable no-await-in-loop */
-  for (let index in userIds) {
-    const userId = userIds[index];
-    const oldUser = await UsersOld.findOne({_id: userId}, 'achievements');
-    const newUser = await Users.findOne({_id: userId}, 'achievements');
+  await Promise.all(userIds.map(userId => (async () => {
+    const oldUser = await UsersOld.findOne({ _id: userId }, 'achievements');
+    const newUser = await Users.findOne({ _id: userId }, 'achievements');
    const achievementUpdate = getAchievementUpdate(newUser, oldUser);
    await Users.update(
-      {_id: userId},
+      { _id: userId },
      {
        $set: {
          achievements: achievementUpdate,
        },
-      });
+      },
+    );
    console.log(`Updated ${userId}`);
-    /* eslint-enable no-await-in-loop */
-  }
-};
+  })()));
+}
--- a/migrations/users/bulk-email.js
+++ b/migrations/users/bulk-email.js
@@ -1,8 +1,9 @@
 /* eslint-disable no-console */
-import { sendTxn } from '../../website/server/libs/email';
-import { model as User } from '../../website/server/models/user';
 import moment from 'moment';
 import nconf from 'nconf';
+import { sendTxn } from '../../website/server/libs/email';
+import { model as User } from '../../website/server/models/user';
+
 const BASE_URL = nconf.get('BASE_URL');
 const EMAIL_SLUG = 'mandrill-email-slug'; // Set email template to send
 const MIGRATION_NAME = 'bulk-email';
@@ -11,23 +12,23 @@ const progressCount = 1000;
 let count = 0;

 async function updateUser (user) {
-  count++;
+  count += 1;

  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);

  sendTxn(
    user,
    EMAIL_SLUG,
-    [{name: 'BASE_URL', content: BASE_URL}] // Add variables from template
+    [{ name: 'BASE_URL', content: BASE_URL }], // Add variables from template
  );

-  return await User.update({_id: user._id}, {$set: {migration: MIGRATION_NAME}}).exec();
+  return User.update({ _id: user._id }, { $set: { migration: MIGRATION_NAME } }).exec();
 }

-module.exports = async function processUsers () {
-  let query = {
-    migration: {$ne: MIGRATION_NAME},
-    'auth.timestamps.loggedin': {$gt: moment().subtract(2, 'weeks').toDate()}, // customize or remove to target different populations
+export default async function processUsers () {
+  const query = {
+    migration: { $ne: MIGRATION_NAME },
+    'auth.timestamps.loggedin': { $gt: moment().subtract(2, 'weeks').toDate() }, // customize or remove to target different populations
  };

  const fields = {
@@ -41,7 +42,7 @@ module.exports = async function processUsers () {
    const users = await User // eslint-disable-line no-await-in-loop
      .find(query)
      .limit(250)
-      .sort({_id: 1})
+      .sort({ _id: 1 })
      .select(fields)
      .lean()
      .exec();
@@ -58,4 +59,4 @@ module.exports = async function processUsers () {

    await Promise.all(users.map(updateUser)); // eslint-disable-line no-await-in-loop
  }
-};
+}
--- a/migrations/users/full-stable.js
+++ b/migrations/users/full-stable.js
@@ -1,11 +1,12 @@
 /* eslint-disable no-console */
-const MIGRATION_NAME = 'full-stable';
 import each from 'lodash/each';
 import keys from 'lodash/keys';
 import content from '../../website/common/script/content/index';

 import { model as User } from '../../website/server/models/user';

+const MIGRATION_NAME = 'full-stable';
+
 const progressCount = 1000;
 let count = 0;

@@ -14,45 +15,45 @@ let count = 0;
 */

 async function updateUser (user) {
-  count++;
+  count += 1;

  const set = {};

  set.migration = MIGRATION_NAME;

-  each(keys(content.pets), (pet) => {
+  each(keys(content.pets), pet => {
    set[`items.pets.${pet}`] = 5;
  });
-  each(keys(content.premiumPets), (pet) => {
+  each(keys(content.premiumPets), pet => {
    set[`items.pets.${pet}`] = 5;
  });
-  each(keys(content.questPets), (pet) => {
+  each(keys(content.questPets), pet => {
    set[`items.pets.${pet}`] = 5;
  });
-  each(keys(content.specialPets), (pet) => {
+  each(keys(content.specialPets), pet => {
    set[`items.pets.${pet}`] = 5;
  });
-  each(keys(content.mounts), (mount) => {
+  each(keys(content.mounts), mount => {
    set[`items.mounts.${mount}`] = true;
  });
-  each(keys(content.premiumMounts), (mount) => {
+  each(keys(content.premiumMounts), mount => {
    set[`items.mounts.${mount}`] = true;
  });
-  each(keys(content.questMounts), (mount) => {
+  each(keys(content.questMounts), mount => {
    set[`items.mounts.${mount}`] = true;
  });
-  each(keys(content.specialMounts), (mount) => {
+  each(keys(content.specialMounts), mount => {
    set[`items.mounts.${mount}`] = true;
  });

  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);

-  return await User.update({_id: user._id}, {$set: set}).exec();
+  return User.update({ _id: user._id }, { $set: set }).exec();
 }

-module.exports = async function processUsers () {
-  let query = {
-    migration: {$ne: MIGRATION_NAME},
+export default async function processUsers () {
+  const query = {
+    migration: { $ne: MIGRATION_NAME },
    'auth.local.username': 'olson22',
  };

@@ -64,7 +65,7 @@ module.exports = async function processUsers () {
    const users = await User // eslint-disable-line no-await-in-loop
      .find(query)
      .limit(250)
-      .sort({_id: 1})
+      .sort({ _id: 1 })
      .select(fields)
      .lean()
      .exec();
@@ -81,4 +82,4 @@ module.exports = async function processUsers () {

    await Promise.all(users.map(updateUser)); // eslint-disable-line no-await-in-loop
  }
-};
+}
--- a/migrations/users/mystery-items.js
+++ b/migrations/users/mystery-items.js
@@ -1,14 +1,15 @@
 /* eslint-disable no-console */
-const MIGRATION_NAME = 'mystery_items_201909';
-const MYSTERY_ITEMS = ['armor_mystery_201909', 'head_mystery_201909'];
 import { model as User } from '../../website/server/models/user';
 import { model as UserNotification } from '../../website/server/models/userNotification';

+const MIGRATION_NAME = 'mystery_items_201911';
+const MYSTERY_ITEMS = ['weapon_mystery_201911', 'head_mystery_201911'];
+
 const progressCount = 1000;
 let count = 0;

 async function updateUser (user) {
-  count++;
+  count += 1;

  const addToSet = {
    'purchased.plan.mysteryItems': {
@@ -29,12 +30,12 @@ async function updateUser (user) {

  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);

-  return await User.update({_id: user._id}, {$set: set, $push: push, $addToSet: addToSet}).exec();
+  return User.update({ _id: user._id }, { $set: set, $push: push, $addToSet: addToSet }).exec();
 }

-module.exports = async function processUsers () {
-  let query = {
-    migration: {$ne: MIGRATION_NAME},
+export default async function processUsers () {
+  const query = {
+    migration: { $ne: MIGRATION_NAME },
    'purchased.plan.customerId': { $ne: null },
    $or: [
      { 'purchased.plan.dateTerminated': { $gte: new Date() } },
@@ -51,7 +52,7 @@ module.exports = async function processUsers () {
    const users = await User // eslint-disable-line no-await-in-loop
      .find(query)
      .limit(250)
-      .sort({_id: 1})
+      .sort({ _id: 1 })
      .select(fields)
      .lean()
      .exec();
@@ -68,4 +69,4 @@ module.exports = async function processUsers () {

    await Promise.all(users.map(updateUser)); // eslint-disable-line no-await-in-loop
  }
-};
+}
--- a/migrations/users/pi-day.js
+++ b/migrations/users/pi-day.js
@@ -1,14 +1,15 @@
 /* eslint-disable no-console */
-const MIGRATION_NAME = '20190314_pi_day';
 import { v4 as uuid } from 'uuid';

 import { model as User } from '../../website/server/models/user';

+const MIGRATION_NAME = '20190314_pi_day';
+
 const progressCount = 1000;
 let count = 0;

 async function updateUser (user) {
-  count++;
+  count *= 1;

  const inc = {
    'items.food.Pie_Skeleton': 1,
@@ -29,19 +30,21 @@ async function updateUser (user) {
  set['items.gear.owned.head_special_piDay'] = false;
  set['items.gear.owned.shield_special_piDay'] = false;
  const push = [
-    {type: 'marketGear', path: 'gear.flat.head_special_piDay', _id: uuid()},
-    {type: 'marketGear', path: 'gear.flat.shield_special_piDay', _id: uuid()},
+    { type: 'marketGear', path: 'gear.flat.head_special_piDay', _id: uuid() },
+    { type: 'marketGear', path: 'gear.flat.shield_special_piDay', _id: uuid() },
  ];

  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);

-  return await User.update({_id: user._id}, {$inc: inc, $set: set, $push: {pinnedItems: {$each: push}}}).exec();
+  return User
+    .update({ _id: user._id }, { $inc: inc, $set: set, $push: { pinnedItems: { $each: push } } })
+    .exec();
 }

-module.exports = async function processUsers () {
-  let query = {
-    migration: {$ne: MIGRATION_NAME},
-    'auth.timestamps.loggedin': {$gt: new Date('2019-02-15')},
+export default async function processUsers () {
+  const query = {
+    migration: { $ne: MIGRATION_NAME },
+    'auth.timestamps.loggedin': { $gt: new Date('2019-02-15') },
  };

  const fields = {
@@ -53,7 +56,7 @@ module.exports = async function processUsers () {
    const users = await User // eslint-disable-line no-await-in-loop
      .find(query)
      .limit(250)
-      .sort({_id: 1})
+      .sort({ _id: 1 })
      .select(fields)
      .lean()
      .exec();
@@ -70,4 +73,4 @@ module.exports = async function processUsers () {

    await Promise.all(users.map(updateUser)); // eslint-disable-line no-await-in-loop
  }
-};
+}
--- a/migrations/users/remove-social-users-extra-data.js
+++ b/migrations/users/remove-social-users-extra-data.js
@@ -1,3 +1,5 @@
+import monk from 'monk'; // eslint-disable-line import/no-extraneous-dependencies
+
 const migrationName = 'remove-social-users-extra-data.js';
 const authorName = 'paglias'; // in case script author needs to know when their ...
 const authorUuid = 'ed4c688c-6652-4a92-9d03-a5a79844174a'; // ... own data is done
@@ -7,13 +9,13 @@ const authorUuid = 'ed4c688c-6652-4a92-9d03-a5a79844174a'; // ... own data is do
 */
 const connectionString = 'mongodb://localhost:27017/habitrpg?auto_reconnect=true'; // FOR TEST DATABASE

-const monk = require('monk');
+
 const dbUsers = monk(connectionString).get('users', { castIds: false });

 function processUsers (lastId) {
  // specify a query to limit the affected users (empty for all users):
-  let query = {
-    migration: {$ne: migrationName},
+  const query = {
+    migration: { $ne: migrationName },
    $or: [
      { 'auth.facebook.id': { $exists: true } },
      { 'auth.google.id': { $exists: true } },
@@ -27,28 +29,28 @@ function processUsers (lastId) {
  }

  dbUsers.find(query, {
-    sort: {_id: 1},
+    sort: { _id: 1 },
    limit: 250,
  })
    .then(updateUsers)
-    .catch((err) => {
+    .catch(err => {
      console.log(err);
-      return exiting(1, `ERROR! ${  err}`);
+      return exiting(1, `ERROR! ${err}`);
    });
 }

-let progressCount = 1000;
+const progressCount = 1000;
 let count = 0;

 function updateUsers (users) {
  if (!users || users.length === 0) {
    console.warn('All appropriate users found and modified.');
    displayData();
-    return;
+    return null;
  }

-  let userPromises = users.map(updateUser);
-  let lastUser = users[users.length - 1];
+  const userPromises = users.map(updateUser);
+  const lastUser = users[users.length - 1];

  return Promise.all(userPromises)
    .then(() => {
@@ -57,7 +59,7 @@ function updateUsers (users) {
 }

 function updateUser (user) {
-  count++;
+  count *= 1;

  const isFacebook = user.auth.facebook && user.auth.facebook.id;
  const isGoogle = user.auth.google && user.auth.google.id;
@@ -82,28 +84,29 @@ function updateUser (user) {
    _id: user._id,
  }, update);

-  if (count % progressCount === 0) console.warn(`${count  } ${  user._id}`);
-  if (user._id === authorUuid) console.warn(`${authorName  } processed`);
+  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);
+  if (user._id === authorUuid) console.warn(`${authorName} processed`);
 }

 function displayData () {
-  console.warn(`\n${  count  } users processed\n`);
+  console.warn(`\n${count} users processed\n`);
  return exiting(0);
 }

 function exiting (code, msg) {
-  code = code || 0; // 0 = success
+  // 0 = success
+  code = code || 0; // eslint-disable-line no-param-reassign
  if (code && !msg) {
-    msg = 'ERROR!';
+    msg = 'ERROR!'; // eslint-disable-line no-param-reassign
  }
  if (msg) {
    if (code) {
      console.error(msg);
-    } else      {
+    } else {
      console.log(msg);
    }
  }
  process.exit(code);
 }

-module.exports = processUsers;
+export default processUsers;
--- a/migrations/users/take-this.js
+++ b/migrations/users/take-this.js
@@ -1,14 +1,15 @@
 /* eslint-disable no-console */
-const MIGRATION_NAME = '20181203_take_this';
 import { v4 as uuid } from 'uuid';

 import { model as User } from '../../website/server/models/user';

+const MIGRATION_NAME = '20181203_take_this';
+
 const progressCount = 1000;
 let count = 0;

 async function updateUser (user) {
-  count++;
+  count += 1;

  const set = {};
  let push;
@@ -19,36 +20,35 @@ async function updateUser (user) {
    push = false;
  } else if (typeof user.items.gear.owned.body_special_takeThis !== 'undefined') {
    set['items.gear.owned.back_special_takeThis'] = false;
-    push = {pinnedItems: {type: 'marketGear', path: 'gear.flat.back_special_takeThis', _id: uuid()}};
+    push = { pinnedItems: { type: 'marketGear', path: 'gear.flat.back_special_takeThis', _id: uuid() } };
  } else if (typeof user.items.gear.owned.head_special_takeThis !== 'undefined') {
    set['items.gear.owned.body_special_takeThis'] = false;
-    push = {pinnedItems: {type: 'marketGear', path: 'gear.flat.body_special_takeThis', _id: uuid()}};
+    push = { pinnedItems: { type: 'marketGear', path: 'gear.flat.body_special_takeThis', _id: uuid() } };
  } else if (typeof user.items.gear.owned.armor_special_takeThis !== 'undefined') {
    set['items.gear.owned.head_special_takeThis'] = false;
-    push = {pinnedItems: {type: 'marketGear', path: 'gear.flat.head_special_takeThis', _id: uuid()}};
+    push = { pinnedItems: { type: 'marketGear', path: 'gear.flat.head_special_takeThis', _id: uuid() } };
  } else if (typeof user.items.gear.owned.weapon_special_takeThis !== 'undefined') {
    set['items.gear.owned.armor_special_takeThis'] = false;
-    push = {pinnedItems: {type: 'marketGear', path: 'gear.flat.armor_special_takeThis', _id: uuid()}};
+    push = { pinnedItems: { type: 'marketGear', path: 'gear.flat.armor_special_takeThis', _id: uuid() } };
  } else if (typeof user.items.gear.owned.shield_special_takeThis !== 'undefined') {
    set['items.gear.owned.weapon_special_takeThis'] = false;
-    push = {pinnedItems: {type: 'marketGear', path: 'gear.flat.weapon_special_takeThis', _id: uuid()}};
+    push = { pinnedItems: { type: 'marketGear', path: 'gear.flat.weapon_special_takeThis', _id: uuid() } };
  } else {
    set['items.gear.owned.shield_special_takeThis'] = false;
-    push = {pinnedItems: {type: 'marketGear', path: 'gear.flat.shield_special_takeThis', _id: uuid()}};
+    push = { pinnedItems: { type: 'marketGear', path: 'gear.flat.shield_special_takeThis', _id: uuid() } };
  }

  if (count % progressCount === 0) console.warn(`${count} ${user._id}`);

  if (push) {
-    return await User.update({_id: user._id}, {$set: set, $push: push}).exec();
-  } else {
-    return await User.update({_id: user._id}, {$set: set}).exec();
+    return User.update({ _id: user._id }, { $set: set, $push: push }).exec();
  }
+  return User.update({ _id: user._id }, { $set: set }).exec();
 }

-module.exports = async function processUsers () {
-  let query = {
-    migration: {$ne: MIGRATION_NAME},
+export default async function processUsers () {
+  const query = {
+    migration: { $ne: MIGRATION_NAME },
    challenges: '00708425-d477-41a5-bf27-6270466e7976',
  };

@@ -61,7 +61,7 @@ module.exports = async function processUsers () {
    const users = await User // eslint-disable-line no-await-in-loop
      .find(query)
      .limit(250)
-      .sort({_id: 1})
+      .sort({ _id: 1 })
      .select(fields)
      .lean()
      .exec();
@@ -78,4 +78,4 @@ module.exports = async function processUsers () {

    await Promise.all(users.map(updateUser)); // eslint-disable-line no-await-in-loop
  }
-};
+}
--- a/migrations/users/users-to-test.js
+++ b/migrations/users/users-to-test.js
@@ -1,3 +1,4 @@
+/* eslint-disable import/no-commonjs */
 /*
 let migrationName = 'UserFromProdToTest';
 let authorName = 'TheHollidayInn'; // in case script author needs to know when their ...
@@ -8,22 +9,24 @@ let authorUuid = ''; // ... own data is done
 * This migraition will copy user data from prod to test
 */

-let monk = require('monk');
-let testConnectionSting = ''; // FOR TEST DATABASE
-let usersTest = monk(testConnectionSting).get('users', { castIds: false });
-let groupsTest = monk(testConnectionSting).get('groups', { castIds: false });
-let challengesTest = monk(testConnectionSting).get('challenges', { castIds: false });
-let tasksTest = monk(testConnectionSting).get('tasks', { castIds: false });
-
-let monk2 = require('monk');
-let liveConnectString = ''; // FOR TEST DATABASE
-let userLive = monk2(liveConnectString).get('users', { castIds: false });
-let groupsLive = monk2(liveConnectString).get('groups', { castIds: false });
-let challengesLive = monk2(liveConnectString).get('challenges', { castIds: false });
-let tasksLive = monk2(liveConnectString).get('tasks', { castIds: false });
-
 import uniq from 'lodash/uniq';

+const monk = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
+
+const testConnectionSting = ''; // FOR TEST DATABASE
+const usersTest = monk(testConnectionSting).get('users', { castIds: false });
+const groupsTest = monk(testConnectionSting).get('groups', { castIds: false });
+const challengesTest = monk(testConnectionSting).get('challenges', { castIds: false });
+const tasksTest = monk(testConnectionSting).get('tasks', { castIds: false });
+
+const monk2 = require('monk'); // eslint-disable-line import/no-extraneous-dependencies
+
+const liveConnectString = ''; // FOR TEST DATABASE
+const userLive = monk2(liveConnectString).get('users', { castIds: false });
+const groupsLive = monk2(liveConnectString).get('groups', { castIds: false });
+const challengesLive = monk2(liveConnectString).get('challenges', { castIds: false });
+const tasksLive = monk2(liveConnectString).get('tasks', { castIds: false });
+
 // Variabls for updating
 /*
 let userIds = [
@@ -36,11 +39,11 @@ let challengeIds = [];
 let tasksIds = [];

 async function processUsers () {
-  let userPromises = [];
+  const userPromises = [];
  // {_id: {$in: userIds}}

-  return userLive.find({guilds: 'b0764d64-8276-45a1-afa5-5ca9a5c64ca0'})
-    .each((user) => {
+  return userLive.find({ guilds: 'b0764d64-8276-45a1-afa5-5ca9a5c64ca0' })
+    .each(user => {
      if (user.guilds.length > 0) groupIds = groupIds.concat(user.guilds);
      if (user.party._id) groupIds.push(user.party._id);
      if (user.challenges.length > 0) challengeIds = challengeIds.concat(user.challenges);
@@ -49,64 +52,56 @@ async function processUsers () {
      if (user.tasksOrder.dailys.length > 0) tasksIds = tasksIds.concat(user.tasksOrder.dailys);
      if (user.tasksOrder.habits.length > 0) tasksIds = tasksIds.concat(user.tasksOrder.habits);

-      let userPromise = usersTest.update({_id: user._id}, user, {upsert: true});
+      const userPromise = usersTest.update({ _id: user._id }, user, { upsert: true });
      userPromises.push(userPromise);
-    }).then(() => {
-      return Promise.all(userPromises);
-    })
+    }).then(() => Promise.all(userPromises))
    .then(() => {
      console.log('Done User');
    });
 }

 function processGroups () {
-  let promises = [];
-  let groupsToQuery = uniq(groupIds);
-  return groupsLive.find({_id: {$in: groupsToQuery}})
-    .each((group) => {
-      let promise = groupsTest.update({_id: group._id}, group, {upsert: true});
+  const promises = [];
+  const groupsToQuery = uniq(groupIds);
+  return groupsLive.find({ _id: { $in: groupsToQuery } })
+    .each(group => {
+      const promise = groupsTest.update({ _id: group._id }, group, { upsert: true });
      promises.push(promise);
-    }).then(() => {
-      return Promise.all(promises);
-    })
+    }).then(() => Promise.all(promises))
    .then(() => {
      console.log('Done Group');
    });
 }

 function processChallenges () {
-  let promises = [];
-  let challengesToQuery = uniq(challengeIds);
-  return challengesLive.find({_id: {$in: challengesToQuery}})
-    .each((challenge) => {
-      let promise = challengesTest.update({_id: challenge._id}, challenge, {upsert: true});
+  const promises = [];
+  const challengesToQuery = uniq(challengeIds);
+  return challengesLive.find({ _id: { $in: challengesToQuery } })
+    .each(challenge => {
+      const promise = challengesTest.update({ _id: challenge._id }, challenge, { upsert: true });
      promises.push(promise);
-    }).then(() => {
-      return Promise.all(promises);
-    })
+    }).then(() => Promise.all(promises))
    .then(() => {
      console.log('Done Challenge');
    });
 }

 function processTasks () {
-  let promises = [];
-  let tasksToQuery = uniq(tasksIds);
-  return tasksLive.find({_id: {$in: tasksToQuery}})
-    .each((task) => {
-      let promise = tasksTest.update({_id: task._id}, task, {upsert: true});
+  const promises = [];
+  const tasksToQuery = uniq(tasksIds);
+  return tasksLive.find({ _id: { $in: tasksToQuery } })
+    .each(task => {
+      const promise = tasksTest.update({ _id: task._id }, task, { upsert: true });
      promises.push(promise);
-    }).then(() => {
-      return Promise.all(promises);
-    })
+    }).then(() => Promise.all(promises))
    .then(() => {
      console.log('Done Tasks');
    });
 }

-module.exports = async function prodToTest () {
+export default async function prodToTest () {
  await processUsers();
  await processGroups();
  await processChallenges();
  await processTasks();
-};
+}
--- a/migrations/utils/connect.js
+++ b/migrations/utils/connect.js
@@ -1,6 +1,5 @@
-'use strict';
-
-const MongoClient = require('mongodb').MongoClient;
+/* eslint-disable import/no-commonjs */
+const { MongoClient } = require('mongodb'); // eslint-disable-line import/no-extraneous-dependencies
 const logger = require('./logger');

 let dbConnection;
@@ -17,7 +16,7 @@ function connectToDb (dbUri) {

      logger.success(`Connected to ${dbUri}`);

-      resolve(database);
+      return resolve(database);
    });
  });
 }
--- a/migrations/utils/logger.js
+++ b/migrations/utils/logger.js
@@ -1,10 +1,11 @@
-'use strict';
-
-const chalk = require('chalk');
+/* eslint-disable import/no-commonjs */
+const chalk = require('chalk'); // eslint-disable-line import/no-extraneous-dependencies

 function loggerGenerator (type, color) {
  return function logger () {
-    let args = Array.from(arguments).map(arg => chalk[color](arg));
+    const args = Array
+      .from(arguments) // eslint-disable-line prefer-rest-params
+      .map(arg => chalk[color](arg));
    console[type].apply(null, args);
  };
 }
--- a/migrations/utils/timer.js
+++ b/migrations/utils/timer.js
@@ -1,30 +1,30 @@
-'use strict';
-
-let logger = require('./logger');
+/* eslint-disable import/no-commonjs */
+const logger = require('./logger');

 class Timer {
-  constructor (options) {
-    options = options || {};
-    let warningThreshold = options.minutesWarningThreshold || 10;
+  constructor (options = {}) {
+    const warningThreshold = options.minutesWarningThreshold || 10;

    this.count = 0;
    this._minutesWarningThreshold = warningThreshold * 60;

    if (!options.disableAutoStart) this.start();
  }
+
  start () {
    this._internalTimer = setInterval(() => {
-      this.count++;
+      this.count *= 1;

-      let shouldWarn = this._minutesWarningThreshold < this.count;
-      let logStyle =  shouldWarn ? 'error' : 'warn';
-      let dangerMessage = shouldWarn ? 'DANGER: ' : '';
+      const shouldWarn = this._minutesWarningThreshold < this.count;
+      const logStyle = shouldWarn ? 'error' : 'warn';
+      const dangerMessage = shouldWarn ? 'DANGER: ' : '';

      if (this.count % 30 === 0) {
        logger[logStyle](`${dangerMessage}Process has been running for`, this.count / 60, 'minutes');
      }
    }, 1000);
  }
+
  stop () {
    if (!this._internalTimer) {
      throw new Error('Timer has not started');
--- a/migrations/utils/unique.js
+++ b/migrations/utils/unique.js
@@ -1,5 +1,4 @@
-'use strict';
-
+/* eslint-disable import/no-commonjs */
 function unique (array) {
  return Array.from(new Set(array));
 }
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,76 +1,55 @@
 {
  "name": "habitica",
  "description": "A habit tracker app which treats your goals like a Role Playing Game.",
-  "version": "4.116.0",
+  "version": "4.123.0",
  "main": "./website/server/index.js",
  "dependencies": {
-    "@google-cloud/trace-agent": "^4.0.0",
+    "@babel/core": "^7.7.2",
+    "@babel/preset-env": "^7.7.1",
+    "@babel/register": "^7.7.0",
+    "@google-cloud/trace-agent": "^4.2.3",
    "@slack/client": "^3.8.1",
    "accepts": "^1.3.5",
    "amazon-payments": "^0.2.7",
    "amplitude": "^3.5.0",
-    "amplitude-js": "^5.2.2",
    "apidoc": "^0.17.5",
    "apn": "^2.2.0",
-    "autoprefixer": "^9.4.0",
-    "aws-sdk": "^2.432.0",
-    "axios": "^0.19.0",
-    "axios-progress-bar": "^1.2.0",
-    "babel-core": "^6.26.3",
-    "babel-eslint": "^8.2.3",
-    "babel-loader": "^7.1.4",
-    "babel-plugin-syntax-async-functions": "^6.13.0",
-    "babel-plugin-syntax-dynamic-import": "^6.18.0",
-    "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
-    "babel-plugin-transform-object-rest-spread": "^6.16.0",
-    "babel-plugin-transform-regenerator": "^6.16.1",
-    "babel-polyfill": "^6.6.1",
-    "babel-preset-es2015": "^6.6.0",
-    "babel-register": "^6.6.0",
-    "babel-runtime": "^6.11.6",
+    "aws-sdk": "^2.573.0",
    "bcrypt": "^3.0.6",
    "body-parser": "^1.18.3",
-    "bootstrap": "^4.1.1",
-    "bootstrap-vue": "^2.0.2",
    "compression": "^1.7.4",
    "cookie-session": "^1.3.3",
    "coupon-code": "^0.4.5",
-    "cross-env": "^6.0.0",
-    "css-loader": "^0.28.11",
    "csv-stringify": "^5.1.0",
    "cwait": "^1.1.1",
    "domain-middleware": "~0.1.0",
+    "eslint": "^6.6.0",
+    "eslint-config-habitrpg": "^6.2.0",
+    "eslint-plugin-mocha": "^5.0.0",
    "express": "^4.16.3",
    "express-basic-auth": "^1.1.5",
    "express-validator": "^5.2.0",
-    "extract-text-webpack-plugin": "^3.0.2",
-    "glob": "^7.1.2",
+    "glob": "^7.1.6",
    "got": "^9.0.0",
    "gulp": "^4.0.0",
-    "gulp-babel": "^7.0.1",
-    "gulp-imagemin": "^6.0.0",
+    "gulp-babel": "^8.0.0",
+    "gulp-imagemin": "^6.2.0",
    "gulp-nodemon": "^2.4.1",
    "gulp.spritesmith": "^6.9.0",
    "habitica-markdown": "^1.3.0",
-    "hellojs": "^1.18.1",
-    "helmet": "^3.21.0",
-    "html-webpack-plugin": "^3.2.0",
-    "image-size": "^0.8.0",
+    "helmet": "^3.21.2",
+    "image-size": "^0.8.3",
    "in-app-purchase": "^1.11.3",
-    "intro.js": "^2.9.3",
-    "jquery": ">=3.0.0",
    "js2xmlparser": "^4.0.0",
-    "lodash": "^4.17.10",
+    "lodash": "^4.17.15",
    "merge-stream": "^2.0.0",
    "method-override": "^3.0.0",
-    "moment": "^2.22.1",
+    "moment": "^2.24.0",
    "moment-recur": "^1.0.7",
-    "mongoose": "^5.6.9",
+    "mongoose": "^5.7.11",
    "morgan": "^1.7.0",
    "nconf": "^0.10.0",
    "node-gcm": "^1.0.2",
-    "node-sass": "^4.12.0",
-    "ora": "^3.2.0",
    "pageres": "^5.1.0",
    "passport": "^0.4.0",
    "passport-facebook": "^3.0.0",
@@ -78,40 +57,17 @@
    "passport-google-oauth20": "1.0.0",
    "paypal-ipn": "3.0.0",
    "paypal-rest-sdk": "^1.8.1",
-    "popper.js": "^1.14.3",
-    "postcss-easy-import": "^3.0.0",
    "ps-tree": "^1.0.0",
-    "pug": "^2.0.3",
    "regenerator-runtime": "^0.13.3",
-    "rimraf": "^2.4.3",
-    "sass-loader": "^7.0.3",
-    "shelljs": "^0.8.2",
+    "rimraf": "^3.0.0",
    "short-uuid": "^3.0.0",
-    "smartbanner.js": "^1.11.0",
-    "stripe": "^7.9.0",
+    "stripe": "^7.13.0",
    "superagent": "^5.0.2",
-    "svg-inline-loader": "^0.8.0",
-    "svg-url-loader": "^3.0.0",
-    "svgo": "^1.2.0",
-    "svgo-loader": "^2.1.0",
    "universal-analytics": "^0.4.17",
-    "update": "^0.7.4",
-    "upgrade": "^1.1.0",
-    "url-loader": "^1.0.0",
    "useragent": "^2.1.9",
-    "uuid": "^3.0.1",
+    "uuid": "^3.3.3",
    "validator": "^11.0.0",
    "vinyl-buffer": "^1.0.1",
-    "vue": "^2.6.10",
-    "vue-loader": "^14.2.2",
-    "vue-mugen-scroll": "^0.2.1",
-    "vue-router": "^3.0.0",
-    "vue-style-loader": "^4.1.0",
-    "vue-template-compiler": "^2.6.10",
-    "vuedraggable": "^2.20.0",
-    "vuejs-datepicker": "git://github.com/habitrpg/vuejs-datepicker.git#5d237615463a84a23dd6f3f77c6ab577d68593ec",
-    "webpack": "^3.12.0",
-    "webpack-merge": "^4.1.3",
    "winston": "^2.4.3",
    "winston-loggly-bulk": "^2.0.2",
    "xml2js": "^0.4.4"
@@ -122,7 +78,8 @@
    "npm": "^6"
  },
  "scripts": {
-    "lint": "eslint --ext .js,.vue .",
+    "lint": "eslint --ext .js --fix . && cd website/client && npm run lint",
+    "lint-no-fix": "eslint --ext .js . && cd website/client && npm run lint-no-fix",
    "test": "npm run lint && gulp test && gulp apidoc",
    "test:build": "gulp test:prepare:build",
    "test:api-v3": "gulp test:api-v3",
@@ -137,60 +94,26 @@
    "test:nodemon": "gulp test:nodemon",
    "coverage": "COVERAGE=true mocha --require register-handlers.js --reporter html-cov > coverage.html; open coverage.html",
    "sprites": "gulp sprites:compile",
-    "client:dev": "node webpack/dev-server.js",
-    "client:build": "gulp build:client",
-    "client:unit": "cross-env NODE_ENV=test karma start test/client/unit/karma.conf.js --single-run",
-    "client:unit:watch": "cross-env NODE_ENV=test karma start test/client/unit/karma.conf.js",
-    "client:e2e": "node test/client/e2e/runner.js",
-    "client:test": "npm run client:unit && npm run client:e2e",
+    "client:dev": "cd website/client && npm run serve",
+    "client:build": "cd website/client && npm run build",
+    "client:unit": "cd website/client && npm run test:unit",
    "start": "gulp nodemon",
-    "postinstall": "gulp build",
+    "postinstall": "gulp build && cd website/client && npm install",
    "apidoc": "gulp apidoc"
  },
  "devDependencies": {
-    "@vue/test-utils": "^1.0.0-beta.29",
-    "babel-plugin-istanbul": "^4.1.6",
-    "babel-plugin-syntax-object-rest-spread": "^6.13.0",
+    "axios": "^0.19.0",
    "chai": "^4.1.2",
    "chai-as-promised": "^7.1.1",
    "chalk": "^2.4.1",
-    "chromedriver": "^77.0.0",
-    "connect-history-api-fallback": "^1.1.0",
-    "cross-spawn": "^7.0.0",
-    "eslint": "^4.19.1",
-    "eslint-config-habitrpg": "^4.0.0",
-    "eslint-friendly-formatter": "^4.0.1",
-    "eslint-loader": "^2.0.0",
-    "eslint-plugin-html": "^4.0.3",
-    "eslint-plugin-mocha": "^5.0.0",
-    "eventsource-polyfill": "^0.9.6",
    "expect.js": "^0.3.1",
-    "http-proxy-middleware": "^0.20.0",
    "istanbul": "^1.1.0-alpha.1",
-    "karma": "^4.0.1",
-    "karma-babel-preprocessor": "^7.0.0",
-    "karma-chai-plugins": "^0.9.0",
-    "karma-chrome-launcher": "^3.0.0",
-    "karma-coverage": "^1.1.2",
-    "karma-mocha": "^1.3.0",
-    "karma-mocha-reporter": "^2.2.5",
-    "karma-sinon-chai": "^2.0.0",
-    "karma-sinon-stub-promise": "^1.0.0",
-    "karma-sourcemap-loader": "^0.3.7",
-    "karma-spec-reporter": "0.0.32",
-    "karma-webpack": "^3.0.0",
    "mocha": "^5.1.1",
-    "monk": "^6.0.6",
-    "nightwatch": "^1.0.16",
-    "puppeteer": "^1.14.0",
+    "monk": "^7.1.1",
    "require-again": "^2.0.0",
-    "selenium-server": "^3.12.0",
    "sinon": "^7.2.4",
    "sinon-chai": "^3.0.0",
-    "sinon-stub-promise": "^4.0.0",
-    "webpack-bundle-analyzer": "^2.12.0",
-    "webpack-dev-middleware": "^2.0.5",
-    "webpack-hot-middleware": "^2.22.2"
+    "sinon-stub-promise": "^4.0.0"
  },
  "optionalDependencies": {}
 }
--- a/scripts/gdpr-delete-users.js
+++ b/scripts/gdpr-delete-users.js
@@ -1,13 +1,13 @@
-/* eslint-disable no-console */
-import axios from 'axios';
-import { model as User } from '../website/server/models/user';
+/* eslint-disable no-console, import/no-commonjs */
+import axios from 'axios'; // eslint-disable-line import/no-extraneous-dependencies
 import nconf from 'nconf';
+import { model as User } from '../website/server/models/user';

 const AMPLITUDE_KEY = nconf.get('AMPLITUDE_KEY');
 const AMPLITUDE_SECRET = nconf.get('AMPLITUDE_SECRET');
 const BASE_URL = nconf.get('BASE_URL');

-async function _deleteAmplitudeData (userId, email) {
+async function deleteAmplitudeData (userId, email) {
  const response = await axios.post(
    'https://amplitude.com/api/2/deletions/users',
    {
@@ -19,22 +19,24 @@ async function _deleteAmplitudeData (userId, email) {
        username: AMPLITUDE_KEY,
        password: AMPLITUDE_SECRET,
      },
-    }
-  ).catch((err) => {
+    },
+  ).catch(err => {
    console.log(err.response.data);
  });

  if (response) console.log(`${response.status} ${response.statusText}`);
 }

-async function _deleteHabiticaData (user, email) {
+async function deleteHabiticaData (user, email) {
  await User.update(
-    {_id: user._id},
-    {$set: {
-      'auth.local.email': email,
-      'auth.local.hashed_password': '$2a$10$QDnNh1j1yMPnTXDEOV38xOePEWFd4X8DSYwAM8XTmqmacG5X0DKjW',
-      'auth.local.passwordHashMethod': 'bcrypt',
-    }}
+    { _id: user._id },
+    {
+      $set: {
+        'auth.local.email': email,
+        'auth.local.hashed_password': '$2a$10$QDnNh1j1yMPnTXDEOV38xOePEWFd4X8DSYwAM8XTmqmacG5X0DKjW',
+        'auth.local.passwordHashMethod': 'bcrypt',
+      },
+    },
  );
  const response = await axios.delete(
    `${BASE_URL}/api/v3/user`,
@@ -46,8 +48,8 @@ async function _deleteHabiticaData (user, email) {
        'x-api-user': user._id,
        'x-api-key': user.apiToken,
      },
-    }
-  ).catch((err) => {
+    },
+  ).catch(err => {
    console.log(err.response.data);
  });

@@ -57,14 +59,15 @@ async function _deleteHabiticaData (user, email) {
  }
 }

-async function _processEmailAddress (email) {
+async function processEmailAddress (email) {
  const emailRegex = new RegExp(`^${email}$`, 'i');
  const users = await User.find({
    $or: [
-      {'auth.local.email': emailRegex},
-      {'auth.facebook.emails.value': emailRegex},
-      {'auth.google.emails.value': emailRegex},
-    ]},
+      { 'auth.local.email': emailRegex },
+      { 'auth.facebook.emails.value': emailRegex },
+      { 'auth.google.emails.value': emailRegex },
+    ],
+  },
  {
    _id: 1,
    apiToken: 1,
@@ -74,15 +77,15 @@ async function _processEmailAddress (email) {
  if (users.length < 1) {
    console.log(`No users found with email address ${email}`);
  } else {
-    for (const user of users) {
-      await _deleteAmplitudeData(user._id, email); // eslint-disable-line no-await-in-loop
-      await _deleteHabiticaData(user, email); // eslint-disable-line no-await-in-loop
-    }
+    Promise.all(users.map(user => (async () => {
+      await deleteAmplitudeData(user._id, email); // eslint-disable-line no-await-in-loop
+      await deleteHabiticaData(user, email); // eslint-disable-line no-await-in-loop
+    })()));
  }
 }

 function deleteUserData (emails) {
-  const emailPromises = emails.map(_processEmailAddress);
+  const emailPromises = emails.map(processEmailAddress);
  return Promise.all(emailPromises);
 }

--- a/scripts/paypalBillingSetup.js
+++ b/scripts/paypalBillingSetup.js
@@ -1,8 +1,12 @@
-require('babel-register');
+/* eslint-disable import/no-commonjs */
+require('@babel/register'); // eslint-disable-line import/no-extraneous-dependencies

-// This file is used for creating paypal billing plans. PayPal doesn't have a web interface for setting up recurring
-// payment plan definitions, instead you have to create it via their REST SDK and keep it updated the same way. So this
-// file will be used once for initing your billing plan (then you get the resultant plan.id to store in config.json),
+// This file is used for creating paypal billing plans.
+// PayPal doesn't have a web interface for setting up recurring
+// payment plan definitions, instead you have to create it
+// via their REST SDK and keep it updated the same way. So this
+// file will be used once for initing your billing plan
+// (then you get the resultant plan.id to store in config.json),
 // and once for any time you need to edit the plan thereafter

 /* eslint-disable no-console, camelcase, no-case-declarations */
@@ -12,11 +16,12 @@ const nconf = require('nconf');
 const _ = require('lodash');
 const paypal = require('paypal-rest-sdk');
 const blocks = require('../website/common').content.subscriptionBlocks;
+
 const live = nconf.get('PAYPAL_MODE') === 'live';

 nconf.argv().env().file('user', path.join(path.resolve(__dirname, '../config.json')));

-let OP = 'create'; // list get update create create-webprofile
+const OP = 'create'; // list get update create create-webprofile

 paypal.configure({
  mode: nconf.get('PAYPAL_MODE'), // sandbox or live
@@ -25,8 +30,8 @@ paypal.configure({
 });

 // https://developer.paypal.com/docs/api/#billing-plans-and-agreements
-let billingPlanTitle = 'Habitica Subscription';
-let billingPlanAttributes = {
+const billingPlanTitle = 'Habitica Subscription';
+const billingPlanAttributes = {
  description: billingPlanTitle,
  type: 'INFINITE',
  merchant_preferences: {
@@ -41,7 +46,7 @@ let billingPlanAttributes = {
  }],
 };

-_.each(blocks, (block) => {
+_.each(blocks, block => {
  block.definition = _.cloneDeep(billingPlanAttributes);
  _.merge(block.definition.payment_definitions[0], {
    name: `${billingPlanTitle} ($${block.price} every ${block.months} months, recurring)`,
@@ -57,17 +62,17 @@ _.each(blocks, (block) => {

 switch (OP) {
  case 'list':
-    paypal.billingPlan.list({status: 'ACTIVE'}, (err, plans) => {
-      console.log({err, plans});
+    paypal.billingPlan.list({ status: 'ACTIVE' }, (err, plans) => {
+      console.log({ err, plans });
    });
    break;
  case 'get':
    paypal.billingPlan.get(nconf.get('PAYPAL_BILLING_PLANS_basic_12mo'), (err, plan) => {
-      console.log({err, plan});
+      console.log({ err, plan });
    });
    break;
  case 'update':
-    let updatePayload = {
+    const updatePayload = {
      op: 'replace',
      path: '/merchant_preferences',
      value: {
@@ -75,7 +80,7 @@ switch (OP) {
      },
    };
    paypal.billingPlan.update(nconf.get('PAYPAL_BILLING_PLANS_basic_12mo'), updatePayload, (err, res) => {
-      console.log({err, plan: res});
+      console.log({ err, plan: res });
    });
    break;
  case 'create':
@@ -83,10 +88,10 @@ switch (OP) {
      if (err) return console.log(err);

      if (plan.state === 'ACTIVE') {
-        return console.log({err, plan});
+        return console.log({ err, plan });
      }

-      let billingPlanUpdateAttributes = [{
+      const billingPlanUpdateAttributes = [{
        op: 'replace',
        path: '/',
        value: {
@@ -96,12 +101,14 @@ switch (OP) {

      // Activate the plan by changing status to Active
      paypal.billingPlan.update(plan.id, billingPlanUpdateAttributes, (err2, response) => {
-        console.log({err: err2, response, id: plan.id});
+        console.log({ err: err2, response, id: plan.id });
      });
+
+      return null;
    });
    break;
  case 'create-webprofile':
-    let webexpinfo = {
+    const webexpinfo = {
      name: 'HabiticaProfile',
      input_fields: {
        no_shipping: 1,
@@ -112,4 +119,6 @@ switch (OP) {
      console.log(error, result);
    });
    break;
+  default:
+    throw new Error('Invalid op');
 }
--- a/test/.eslintrc
+++ b/test/.eslintrc
@@ -1,12 +0,0 @@
-{
-  "extends": [
-    "habitrpg/mocha",
-    "habitrpg/esnext"
-  ],
-  "env": {
-    "node": true,
-  },
-  "globals": {
-    "_": true,
-  }
-}
--- a/test/.eslintrc.js
+++ b/test/.eslintrc.js
@@ -0,0 +1,12 @@
+module.exports = {
+  extends: [
+    'habitrpg/lib/mocha',
+  ],
+  globals: {
+    _: true,
+    chai: true,
+    expect: true,
+    sinon: true,
+    sandbox: true
+  },
+}
--- a/test/api/unit/libs/analyticsService.test.js
+++ b/test/api/unit/libs/analyticsService.test.js
@@ -1,7 +1,7 @@
 /* eslint-disable camelcase */
-import analyticsService from '../../../../website/server/libs/analyticsService';
 import Amplitude from 'amplitude';
 import { Visitor } from 'universal-analytics';
+import * as analyticsService from '../../../../website/server/libs/analyticsService';

 describe('analyticsService', () => {
  beforeEach(() => {
@@ -16,7 +16,8 @@ describe('analyticsService', () => {
  });

  describe('#track', () => {
-    let eventType, data;
+    let eventType; let
+      data;

    beforeEach(() => {
      Visitor.prototype.event.yields();
@@ -35,12 +36,10 @@ describe('analyticsService', () => {
    });

    context('Amplitude', () => {
-      it('calls out to amplitude', () => {
-        return analyticsService.track(eventType, data)
-          .then(() => {
-            expect(Amplitude.prototype.track).to.be.calledOnce;
-          });
-      });
+      it('calls out to amplitude', () => analyticsService.track(eventType, data)
+        .then(() => {
+          expect(Amplitude.prototype.track).to.be.calledOnce;
+        }));

      it('uses a dummy user id if none is provided', () => {
        delete data.uuid;
@@ -55,7 +54,7 @@ describe('analyticsService', () => {

      context('platform', () => {
        it('logs web platform', () => {
-          data.headers = {'x-client': 'habitica-web'};
+          data.headers = { 'x-client': 'habitica-web' };

          return analyticsService.track(eventType, data)
            .then(() => {
@@ -66,7 +65,7 @@ describe('analyticsService', () => {
        });

        it('logs iOS platform', () => {
-          data.headers = {'x-client': 'habitica-ios'};
+          data.headers = { 'x-client': 'habitica-ios' };

          return analyticsService.track(eventType, data)
            .then(() => {
@@ -77,7 +76,7 @@ describe('analyticsService', () => {
        });

        it('logs Android platform', () => {
-          data.headers = {'x-client': 'habitica-android'};
+          data.headers = { 'x-client': 'habitica-android' };

          return analyticsService.track(eventType, data)
            .then(() => {
@@ -88,7 +87,7 @@ describe('analyticsService', () => {
        });

        it('logs 3rd Party platform', () => {
-          data.headers = {'x-client': 'some-third-party'};
+          data.headers = { 'x-client': 'some-third-party' };

          return analyticsService.track(eventType, data)
            .then(() => {
@@ -169,18 +168,16 @@ describe('analyticsService', () => {
        });
      });

-      it('sends details about event', () => {
-        return analyticsService.track(eventType, data)
-          .then(() => {
-            expect(Amplitude.prototype.track).to.be.calledWithMatch({
-              event_properties: {
-                category: 'behavior',
-                resting: true,
-                cronCount: 5,
-              },
-            });
+      it('sends details about event', () => analyticsService.track(eventType, data)
+        .then(() => {
+          expect(Amplitude.prototype.track).to.be.calledWithMatch({
+            event_properties: {
+              category: 'behavior',
+              resting: true,
+              cronCount: 5,
+            },
          });
-      });
+        }));

      it('sends english item name for gear if itemKey is provided', () => {
        data.itemKey = 'headAccessory_special_foxEars';
@@ -267,16 +264,18 @@ describe('analyticsService', () => {
      });

      it('sends user data if provided', () => {
-        let stats = { class: 'wizard', exp: 5, gp: 23, hp: 10, lvl: 4, mp: 30 };
-        let user = {
+        const stats = {
+          class: 'wizard', exp: 5, gp: 23, hp: 10, lvl: 4, mp: 30,
+        };
+        const user = {
          stats,
          contributor: { level: 1 },
          purchased: { plan: { planId: 'foo-plan' } },
-          flags: {tour: {intro: -2}},
-          habits: [{_id: 'habit'}],
-          dailys: [{_id: 'daily'}],
-          todos: [{_id: 'todo'}],
-          rewards: [{_id: 'reward'}],
+          flags: { tour: { intro: -2 } },
+          habits: [{ _id: 'habit' }],
+          dailys: [{ _id: 'daily' }],
+          todos: [{ _id: 'todo' }],
+          rewards: [{ _id: 'reward' }],
          balance: 12,
          loginIncentives: 1,
        };
@@ -312,27 +311,24 @@ describe('analyticsService', () => {
    });

    context('GA', () => {
-      it('calls out to GA', () => {
-        return analyticsService.track(eventType, data)
-          .then(() => {
-            expect(Visitor.prototype.event).to.be.calledOnce;
-          });
-      });
+      it('calls out to GA', () => analyticsService.track(eventType, data)
+        .then(() => {
+          expect(Visitor.prototype.event).to.be.calledOnce;
+        }));

-      it('sends details about event', () => {
-        return analyticsService.track(eventType, data)
-          .then(() => {
-            expect(Visitor.prototype.event).to.be.calledWith({
-              ea: 'Cron',
-              ec: 'behavior',
-            });
+      it('sends details about event', () => analyticsService.track(eventType, data)
+        .then(() => {
+          expect(Visitor.prototype.event).to.be.calledWith({
+            ea: 'Cron',
+            ec: 'behavior',
          });
-      });
+        }));
    });
  });

  describe('#trackPurchase', () => {
-    let data, itemSpy;
+    let data; let
+      itemSpy;

    beforeEach(() => {
      Visitor.prototype.event.yields();
@@ -361,12 +357,10 @@ describe('analyticsService', () => {
    });

    context('Amplitude', () => {
-      it('calls out to amplitude', () => {
-        return analyticsService.trackPurchase(data)
-          .then(() => {
-            expect(Amplitude.prototype.track).to.be.calledOnce;
-          });
-      });
+      it('calls out to amplitude', () => analyticsService.trackPurchase(data)
+        .then(() => {
+          expect(Amplitude.prototype.track).to.be.calledOnce;
+        }));

      it('uses a dummy user id if none is provided', () => {
        delete data.uuid;
@@ -381,7 +375,7 @@ describe('analyticsService', () => {

      context('platform', () => {
        it('logs web platform', () => {
-          data.headers = {'x-client': 'habitica-web'};
+          data.headers = { 'x-client': 'habitica-web' };

          return analyticsService.trackPurchase(data)
            .then(() => {
@@ -392,7 +386,7 @@ describe('analyticsService', () => {
        });

        it('logs iOS platform', () => {
-          data.headers = {'x-client': 'habitica-ios'};
+          data.headers = { 'x-client': 'habitica-ios' };

          return analyticsService.trackPurchase(data)
            .then(() => {
@@ -403,7 +397,7 @@ describe('analyticsService', () => {
        });

        it('logs Android platform', () => {
-          data.headers = {'x-client': 'habitica-android'};
+          data.headers = { 'x-client': 'habitica-android' };

          return analyticsService.trackPurchase(data)
            .then(() => {
@@ -414,7 +408,7 @@ describe('analyticsService', () => {
        });

        it('logs 3rd Party platform', () => {
-          data.headers = {'x-client': 'some-third-party'};
+          data.headers = { 'x-client': 'some-third-party' };

          return analyticsService.trackPurchase(data)
            .then(() => {
@@ -495,33 +489,33 @@ describe('analyticsService', () => {
        });
      });

-      it('sends details about purchase', () => {
-        return analyticsService.trackPurchase(data)
-          .then(() => {
-            expect(Amplitude.prototype.track).to.be.calledWithMatch({
-              event_properties: {
-                gift: false,
-                itemPurchased: 'Gems',
-                paymentMethod: 'PayPal',
-                purchaseType: 'checkout',
-                quantity: 1,
-                sku: 'paypal-checkout',
-              },
-            });
+      it('sends details about purchase', () => analyticsService.trackPurchase(data)
+        .then(() => {
+          expect(Amplitude.prototype.track).to.be.calledWithMatch({
+            event_properties: {
+              gift: false,
+              itemPurchased: 'Gems',
+              paymentMethod: 'PayPal',
+              purchaseType: 'checkout',
+              quantity: 1,
+              sku: 'paypal-checkout',
+            },
          });
-      });
+        }));

      it('sends user data if provided', () => {
-        let stats = { class: 'wizard', exp: 5, gp: 23, hp: 10, lvl: 4, mp: 30 };
-        let user = {
+        const stats = {
+          class: 'wizard', exp: 5, gp: 23, hp: 10, lvl: 4, mp: 30,
+        };
+        const user = {
          stats,
          contributor: { level: 1 },
          purchased: { plan: { planId: 'foo-plan' } },
-          flags: {tour: {intro: -2}},
-          habits: [{_id: 'habit'}],
-          dailys: [{_id: 'daily'}],
-          todos: [{_id: 'todo'}],
-          rewards: [{_id: 'reward'}],
+          flags: { tour: { intro: -2 } },
+          habits: [{ _id: 'habit' }],
+          dailys: [{ _id: 'daily' }],
+          todos: [{ _id: 'todo' }],
+          rewards: [{ _id: 'reward' }],
        };

        data.user = user;
@@ -552,27 +546,23 @@ describe('analyticsService', () => {
    });

    context('GA', () => {
-      it('calls out to GA', () => {
-        return analyticsService.trackPurchase(data)
-          .then(() => {
-            expect(Visitor.prototype.event).to.be.calledOnce;
-            expect(Visitor.prototype.transaction).to.be.calledOnce;
-          });
-      });
+      it('calls out to GA', () => analyticsService.trackPurchase(data)
+        .then(() => {
+          expect(Visitor.prototype.event).to.be.calledOnce;
+          expect(Visitor.prototype.transaction).to.be.calledOnce;
+        }));

-      it('sends details about purchase', () => {
-        return analyticsService.trackPurchase(data)
-          .then(() => {
-            expect(Visitor.prototype.event).to.be.calledWith({
-              ea: 'checkout',
-              ec: 'commerce',
-              el: 'PayPal',
-              ev: 8,
-            });
-            expect(Visitor.prototype.transaction).to.be.calledWith('user-id', 8);
-            expect(itemSpy).to.be.calledWith(8, 1, 'paypal-checkout', 'Gems', 'checkout');
+      it('sends details about purchase', () => analyticsService.trackPurchase(data)
+        .then(() => {
+          expect(Visitor.prototype.event).to.be.calledWith({
+            ea: 'checkout',
+            ec: 'commerce',
+            el: 'PayPal',
+            ev: 8,
          });
-      });
+          expect(Visitor.prototype.transaction).to.be.calledWith('user-id', 8);
+          expect(itemSpy).to.be.calledWith(8, 1, 'paypal-checkout', 'Gems', 'checkout');
+        }));
    });
  });

--- a/test/api/unit/libs/apiError.js
+++ b/test/api/unit/libs/apiError.js
@@ -11,7 +11,7 @@ describe('API Messages', () => {
  });

  it('clones the passed variables', () => {
-    let vars = {a: 1};
+    const vars = { a: 1 };
    sandbox.stub(_, 'clone').returns({});
    apiError('guildsOnlyPaginate', vars);
    expect(_.clone).to.have.been.calledOnce;
@@ -19,8 +19,8 @@ describe('API Messages', () => {
  });

  it('pass the message through _.template', () => {
-    let vars = {a: 1};
-    let stub = sinon.stub().returns('string');
+    const vars = { a: 1 };
+    const stub = sinon.stub().returns('string');
    sandbox.stub(_, 'template').returns(stub);
    apiError('guildsOnlyPaginate', vars);
    expect(_.template).to.have.been.calledOnce;
--- a/test/api/unit/libs/baseModel.test.js
+++ b/test/api/unit/libs/baseModel.test.js
@@ -1,5 +1,5 @@
-import baseModel from '../../../../website/server/libs/baseModel';
 import mongoose from 'mongoose';
+import baseModel from '../../../../website/server/libs/baseModel';

 describe('Base model plugin', () => {
  let schema;
@@ -25,7 +25,7 @@ describe('Base model plugin', () => {
  });

  it('can add timestamps fields', () => {
-    schema.plugin(baseModel, {timestamps: true});
+    schema.plugin(baseModel, { timestamps: true });

    expect(schema.add).to.be.calledTwice;
  });
@@ -36,7 +36,7 @@ describe('Base model plugin', () => {
    });

    expect(schema.statics.sanitize).to.exist;
-    let sanitized = schema.statics.sanitize({ok: true, noUpdateForMe: true});
+    const sanitized = schema.statics.sanitize({ ok: true, noUpdateForMe: true });

    expect(sanitized).to.have.property('ok');
    expect(sanitized).not.to.have.property('noUpdateForMe');
@@ -49,7 +49,7 @@ describe('Base model plugin', () => {
    });

    expect(schema.statics.sanitize).to.exist;
-    let sanitized = schema.statics.sanitize({ok: true, noUpdateForMe: true, usuallySettable: true}, ['usuallySettable']);
+    const sanitized = schema.statics.sanitize({ ok: true, noUpdateForMe: true, usuallySettable: true }, ['usuallySettable']);

    expect(sanitized).to.have.property('ok');
    expect(sanitized).not.to.have.property('noUpdateForMe');
@@ -63,31 +63,31 @@ describe('Base model plugin', () => {
    });

    expect(schema.options.toJSON.transform).to.exist;
-    let objToTransform = {ok: true, amPrivate: true};
-    let privatized = schema.options.toJSON.transform({}, objToTransform);
+    const objToTransform = { ok: true, amPrivate: true };
+    const privatized = schema.options.toJSON.transform({}, objToTransform);

    expect(privatized).to.have.property('ok');
    expect(privatized).not.to.have.property('amPrivate');
  });

  it('accepts a further transform function for toJSON', () => {
-    let options = {
+    const options = {
      private: ['amPrivate'],
      toJSONTransform: sandbox.stub().returns(true),
    };

    schema.plugin(baseModel, options);

-    let objToTransform = {ok: true, amPrivate: true};
-    let doc = {doc: true};
-    let privatized = schema.options.toJSON.transform(doc, objToTransform);
+    const objToTransform = { ok: true, amPrivate: true };
+    const doc = { doc: true };
+    const privatized = schema.options.toJSON.transform(doc, objToTransform);

    expect(privatized).to.equals(true);
    expect(options.toJSONTransform).to.be.calledWith(objToTransform, doc);
  });

  it('accepts a transform function for sanitize', () => {
-    let options = {
+    const options = {
      private: ['amPrivate'],
      sanitizeTransform: sandbox.stub().returns(true),
    };
@@ -95,8 +95,8 @@ describe('Base model plugin', () => {
    schema.plugin(baseModel, options);

    expect(schema.options.toJSON.transform).to.exist;
-    let objToSanitize = {ok: true, noUpdateForMe: true};
-    let sanitized = schema.statics.sanitize(objToSanitize);
+    const objToSanitize = { ok: true, noUpdateForMe: true };
+    const sanitized = schema.statics.sanitize(objToSanitize);

    expect(sanitized).to.equals(true);
    expect(options.sanitizeTransform).to.be.calledWith(objToSanitize);
--- a/test/api/unit/libs/collectionManipulators.test.js
+++ b/test/api/unit/libs/collectionManipulators.test.js
@@ -6,7 +6,7 @@ import {
 describe('Collection Manipulators', () => {
  describe('removeFromArray', () => {
    it('removes element from array', () => {
-      let array = ['a', 'b', 'c', 'd'];
+      const array = ['a', 'b', 'c', 'd'];

      removeFromArray(array, 'c');

@@ -14,7 +14,7 @@ describe('Collection Manipulators', () => {
    });

    it('removes object from array', () => {
-      let array = [
+      const array = [
        { id: 'a', foo: 'bar' },
        { id: 'b', foo: 'bar' },
        { id: 'c', foo: 'bar' },
@@ -28,7 +28,7 @@ describe('Collection Manipulators', () => {
    });

    it('does not change array if value is not found', () => {
-      let array = ['a', 'b', 'c', 'd'];
+      const array = ['a', 'b', 'c', 'd'];

      removeFromArray(array, 'z');

@@ -40,15 +40,15 @@ describe('Collection Manipulators', () => {
    });

    it('returns the removed element', () => {
-      let array = ['a', 'b', 'c'];
+      const array = ['a', 'b', 'c'];

-      let result = removeFromArray(array, 'b');
+      const result = removeFromArray(array, 'b');

      expect(result).to.eql('b');
    });

    it('returns the removed object element', () => {
-      let array = [
+      const array = [
        { id: 'a', foo: 'bar' },
        { id: 'b', foo: 'bar' },
        { id: 'c', foo: 'bar' },
@@ -56,31 +56,31 @@ describe('Collection Manipulators', () => {
        { id: 'e', foo: 'bar' },
      ];

-      let result = removeFromArray(array, { id: 'c' });
+      const result = removeFromArray(array, { id: 'c' });

      expect(result).to.eql({ id: 'c', foo: 'bar' });
    });

    it('returns false if item is not found', () => {
-      let array = ['a', 'b', 'c'];
+      const array = ['a', 'b', 'c'];

-      let result = removeFromArray(array, 'z');
+      const result = removeFromArray(array, 'z');

      expect(result).to.eql(false);
    });

    it('persists removal of element when mongoose document is saved', async () => {
-      let schema = new mongoose.Schema({
+      const schema = new mongoose.Schema({
        array: Array,
      });
-      let Model = mongoose.model('ModelToTestRemoveFromArray', schema);
-      let model = await new Model({
+      const Model = mongoose.model('ModelToTestRemoveFromArray', schema);
+      const model = await new Model({
        array: ['a', 'b', 'c'],
      }).save(); // Initial creation

      removeFromArray(model.array, 'b');

-      let savedModel = await model.save();
+      const savedModel = await model.save();

      expect(savedModel.array).to.not.include('b');
    });
--- a/test/api/unit/libs/cron.test.js
+++ b/test/api/unit/libs/cron.test.js
--- a/test/api/unit/libs/email.test.js
+++ b/test/api/unit/libs/email.test.js
@@ -31,20 +31,20 @@ function getUser () {
 }

 describe('emails', () => {
-  let pathToEmailLib = '../../../../website/server/libs/email';
+  const pathToEmailLib = '../../../../website/server/libs/email';

  describe('getUserInfo', () => {
    it('returns an empty object if no field request', () => {
-      let attachEmail = requireAgain(pathToEmailLib);
-      let getUserInfo = attachEmail.getUserInfo;
+      const attachEmail = requireAgain(pathToEmailLib);
+      const { getUserInfo } = attachEmail;
      expect(getUserInfo({}, [])).to.be.empty;
    });

    it('returns correct user data', () => {
-      let attachEmail = requireAgain(pathToEmailLib);
-      let getUserInfo = attachEmail.getUserInfo;
-      let user = getUser();
-      let data = getUserInfo(user, ['name', 'email', '_id', 'canSend']);
+      const attachEmail = requireAgain(pathToEmailLib);
+      const { getUserInfo } = attachEmail;
+      const user = getUser();
+      const data = getUserInfo(user, ['name', 'email', '_id', 'canSend']);

      expect(data).to.have.property('name', user.auth.local.username);
      expect(data).to.have.property('email', user.auth.local.email);
@@ -53,13 +53,13 @@ describe('emails', () => {
    });

    it('returns correct user data [facebook users]', () => {
-      let attachEmail = requireAgain(pathToEmailLib);
-      let getUserInfo = attachEmail.getUserInfo;
-      let user = getUser();
+      const attachEmail = requireAgain(pathToEmailLib);
+      const { getUserInfo } = attachEmail;
+      const user = getUser();
      delete user.profile.name;
      delete user.auth.local.email;

-      let data = getUserInfo(user, ['name', 'email', '_id', 'canSend']);
+      const data = getUserInfo(user, ['name', 'email', '_id', 'canSend']);

      expect(data).to.have.property('name', user.auth.local.username);
      expect(data).to.have.property('email', user.auth.facebook.emails[0].value);
@@ -68,13 +68,13 @@ describe('emails', () => {
    });

    it('has fallbacks for missing data', () => {
-      let attachEmail = requireAgain(pathToEmailLib);
-      let getUserInfo = attachEmail.getUserInfo;
-      let user = getUser();
+      const attachEmail = requireAgain(pathToEmailLib);
+      const { getUserInfo } = attachEmail;
+      const user = getUser();
      delete user.auth.local.email;
      delete user.auth.facebook;

-      let data = getUserInfo(user, ['name', 'email', '_id', 'canSend']);
+      const data = getUserInfo(user, ['name', 'email', '_id', 'canSend']);

      expect(data).to.have.property('name', user.auth.local.username);
      expect(data).not.to.have.property('email');
@@ -85,18 +85,18 @@ describe('emails', () => {

  describe('getGroupUrl', () => {
    it('returns correct url if group is the tavern', () => {
-      let getGroupUrl = require(pathToEmailLib).getGroupUrl;
-      expect(getGroupUrl({_id: TAVERN_ID, type: 'guild'})).to.eql('/groups/tavern');
+      const { getGroupUrl } = require(pathToEmailLib); // eslint-disable-line import/no-dynamic-require, max-len
+      expect(getGroupUrl({ _id: TAVERN_ID, type: 'guild' })).to.eql('/groups/tavern');
    });

    it('returns correct url if group is a guild', () => {
-      let getGroupUrl = require(pathToEmailLib).getGroupUrl;
-      expect(getGroupUrl({_id: 'random _id', type: 'guild'})).to.eql('/groups/guild/random _id');
+      const { getGroupUrl } = require(pathToEmailLib); // eslint-disable-line import/no-dynamic-require, max-len
+      expect(getGroupUrl({ _id: 'random _id', type: 'guild' })).to.eql('/groups/guild/random _id');
    });

    it('returns correct url if group is a party', () => {
-      let getGroupUrl = require(pathToEmailLib).getGroupUrl;
-      expect(getGroupUrl({_id: 'random _id', type: 'party'})).to.eql('party');
+      const { getGroupUrl } = require(pathToEmailLib); // eslint-disable-line import/no-dynamic-require, max-len
+      expect(getGroupUrl({ _id: 'random _id', type: 'party' })).to.eql('party');
    });
  });

@@ -111,10 +111,10 @@ describe('emails', () => {

    it('can send a txn email to one recipient', () => {
      sandbox.stub(nconf, 'get').withArgs('IS_PROD').returns(true);
-      let attachEmail = requireAgain(pathToEmailLib);
-      let sendTxnEmail = attachEmail.sendTxn;
-      let emailType = 'an email type';
-      let mailingInfo = {
+      const attachEmail = requireAgain(pathToEmailLib);
+      const sendTxnEmail = attachEmail.sendTxn;
+      const emailType = 'an email type';
+      const mailingInfo = {
        name: 'my name',
        email: 'my@email',
      };
@@ -125,9 +125,7 @@ describe('emails', () => {
        body: {
          data: {
            emailType: sinon.match.same(emailType),
-            to: sinon.match((value) => {
-              return Array.isArray(value) && value[0].name === mailingInfo.name;
-            }, 'matches mailing info array'),
+            to: sinon.match(value => Array.isArray(value) && value[0].name === mailingInfo.name, 'matches mailing info array'),
          },
        },
      }));
@@ -135,10 +133,10 @@ describe('emails', () => {

    it('does not send email if address is missing', () => {
      sandbox.stub(nconf, 'get').withArgs('IS_PROD').returns(true);
-      let attachEmail = requireAgain(pathToEmailLib);
-      let sendTxnEmail = attachEmail.sendTxn;
-      let emailType = 'an email type';
-      let mailingInfo = {
+      const attachEmail = requireAgain(pathToEmailLib);
+      const sendTxnEmail = attachEmail.sendTxn;
+      const emailType = 'an email type';
+      const mailingInfo = {
        name: 'my name',
        // email: 'my@email',
      };
@@ -149,10 +147,10 @@ describe('emails', () => {

    it('uses getUserInfo in case of user data', () => {
      sandbox.stub(nconf, 'get').withArgs('IS_PROD').returns(true);
-      let attachEmail = requireAgain(pathToEmailLib);
-      let sendTxnEmail = attachEmail.sendTxn;
-      let emailType = 'an email type';
-      let mailingInfo = getUser();
+      const attachEmail = requireAgain(pathToEmailLib);
+      const sendTxnEmail = attachEmail.sendTxn;
+      const emailType = 'an email type';
+      const mailingInfo = getUser();

      sendTxnEmail(mailingInfo, emailType);
      expect(got.post).to.be.calledWith('undefined/job', sinon.match({
@@ -168,28 +166,24 @@ describe('emails', () => {

    it('sends email with some default variables', () => {
      sandbox.stub(nconf, 'get').withArgs('IS_PROD').returns(true);
-      let attachEmail = requireAgain(pathToEmailLib);
-      let sendTxnEmail = attachEmail.sendTxn;
-      let emailType = 'an email type';
-      let mailingInfo = {
+      const attachEmail = requireAgain(pathToEmailLib);
+      const sendTxnEmail = attachEmail.sendTxn;
+      const emailType = 'an email type';
+      const mailingInfo = {
        name: 'my name',
        email: 'my@email',
      };
-      let variables = [1, 2, 3];
+      const variables = [1, 2, 3];

      sendTxnEmail(mailingInfo, emailType, variables);
      expect(got.post).to.be.calledWith('undefined/job', sinon.match({
        json: true,
        body: {
          data: {
-            variables: sinon.match((value) => {
-              return value[0].name === 'BASE_URL';
-            }, 'matches variables'),
-            personalVariables: sinon.match((value) => {
-              return value[0].rcpt === mailingInfo.email &&
-                value[0].vars[0].name === 'RECIPIENT_NAME' &&
-                value[0].vars[1].name === 'RECIPIENT_UNSUB_URL';
-            }, 'matches personal variables'),
+            variables: sinon.match(value => value[0].name === 'BASE_URL', 'matches variables'),
+            personalVariables: sinon.match(value => value[0].rcpt === mailingInfo.email
+                && value[0].vars[0].name === 'RECIPIENT_NAME'
+                && value[0].vars[1].name === 'RECIPIENT_UNSUB_URL', 'matches personal variables'),
          },
        },
      }));
--- a/test/api/unit/libs/encryption.test.js
+++ b/test/api/unit/libs/encryption.test.js
@@ -5,9 +5,9 @@ import {

 describe('encryption', () => {
  it('can encrypt and decrypt', () => {
-    let data = 'some secret text';
-    let encrypted = encrypt(data);
-    let decrypted = decrypt(encrypted);
+    const data = 'some secret text';
+    const encrypted = encrypt(data);
+    const decrypted = decrypt(encrypted);

    expect(encrypted).not.to.equal(data);
    expect(data).to.equal(decrypted);
--- a/test/api/unit/libs/errors.test.js
+++ b/test/api/unit/libs/errors.test.js
@@ -12,7 +12,7 @@ import i18n from '../../../../website/common/script/i18n';
 describe('Custom Errors', () => {
  describe('CustomError', () => {
    it('is an instance of Error', () => {
-      let customError = new CustomError();
+      const customError = new CustomError();

      expect(customError).to.be.an.instanceOf(Error);
    });
@@ -20,25 +20,25 @@ describe('Custom Errors', () => {

  describe('NotAuthorized', () => {
    it('is an instance of CustomError', () => {
-      let notAuthorizedError = new NotAuthorized();
+      const notAuthorizedError = new NotAuthorized();

      expect(notAuthorizedError).to.be.an.instanceOf(CustomError);
    });

    it('it returns an http code of 401', () => {
-      let notAuthorizedError = new NotAuthorized();
+      const notAuthorizedError = new NotAuthorized();

      expect(notAuthorizedError.httpCode).to.eql(401);
    });

    it('returns a default message', () => {
-      let notAuthorizedError = new NotAuthorized();
+      const notAuthorizedError = new NotAuthorized();

      expect(notAuthorizedError.message).to.eql('Not authorized.');
    });

    it('allows a custom message', () => {
-      let notAuthorizedError = new NotAuthorized('Custom Error Message');
+      const notAuthorizedError = new NotAuthorized('Custom Error Message');

      expect(notAuthorizedError.message).to.eql('Custom Error Message');
    });
@@ -46,25 +46,25 @@ describe('Custom Errors', () => {

  describe('NotFound', () => {
    it('is an instance of CustomError', () => {
-      let notAuthorizedError = new NotFound();
+      const notAuthorizedError = new NotFound();

      expect(notAuthorizedError).to.be.an.instanceOf(CustomError);
    });

    it('it returns an http code of 404', () => {
-      let notAuthorizedError = new NotFound();
+      const notAuthorizedError = new NotFound();

      expect(notAuthorizedError.httpCode).to.eql(404);
    });

    it('returns a default message', () => {
-      let notAuthorizedError = new NotFound();
+      const notAuthorizedError = new NotFound();

      expect(notAuthorizedError.message).to.eql('Not found.');
    });

    it('allows a custom message', () => {
-      let notAuthorizedError = new NotFound('Custom Error Message');
+      const notAuthorizedError = new NotFound('Custom Error Message');

      expect(notAuthorizedError.message).to.eql('Custom Error Message');
    });
@@ -89,25 +89,25 @@ describe('Custom Errors', () => {

  describe('BadRequest', () => {
    it('is an instance of CustomError', () => {
-      let badRequestError = new BadRequest();
+      const badRequestError = new BadRequest();

      expect(badRequestError).to.be.an.instanceOf(CustomError);
    });

    it('it returns an http code of 401', () => {
-      let badRequestError = new BadRequest();
+      const badRequestError = new BadRequest();

      expect(badRequestError.httpCode).to.eql(400);
    });

    it('returns a default message', () => {
-      let badRequestError = new BadRequest();
+      const badRequestError = new BadRequest();

      expect(badRequestError.message).to.eql('Bad request.');
    });

    it('allows a custom message', () => {
-      let badRequestError = new BadRequest('Custom Error Message');
+      const badRequestError = new BadRequest('Custom Error Message');

      expect(badRequestError.message).to.eql('Custom Error Message');
    });
@@ -115,25 +115,25 @@ describe('Custom Errors', () => {

  describe('InternalServerError', () => {
    it('is an instance of CustomError', () => {
-      let internalServerError = new InternalServerError();
+      const internalServerError = new InternalServerError();

      expect(internalServerError).to.be.an.instanceOf(CustomError);
    });

    it('it returns an http code of 500', () => {
-      let internalServerError = new InternalServerError();
+      const internalServerError = new InternalServerError();

      expect(internalServerError.httpCode).to.eql(500);
    });

    it('returns a default message', () => {
-      let internalServerError = new InternalServerError();
+      const internalServerError = new InternalServerError();

      expect(internalServerError.message).to.eql('An unexpected error occurred.');
    });

    it('allows a custom message', () => {
-      let internalServerError = new InternalServerError('Custom Error Message');
+      const internalServerError = new InternalServerError('Custom Error Message');

      expect(internalServerError.message).to.eql('Custom Error Message');
    });
--- a/test/api/unit/libs/highlightMentions.js
+++ b/test/api/unit/libs/highlightMentions.js
@@ -0,0 +1,60 @@
+import mongoose from 'mongoose';
+import {
+  highlightMentions,
+} from '../../../../website/server/libs/highlightMentions';
+
+describe('highlightMentions', () => {
+  beforeEach(() => {
+    const mockFind = {
+      select () {
+        return this;
+      },
+      lean () {
+        return this;
+      },
+      exec () {
+        return Promise.resolve([{
+          auth: { local: { username: 'user' } }, _id: '111',
+        }, { auth: { local: { username: 'user2' } }, _id: '222' }, { auth: { local: { username: 'user3' } }, _id: '333' }, { auth: { local: { username: 'user-dash' } }, _id: '444' }, { auth: { local: { username: 'user_underscore' } }, _id: '555' },
+        ]);
+      },
+    };
+
+    sinon.stub(mongoose.Model, 'find').returns(mockFind);
+  });
+
+  afterEach(() => {
+    sinon.restore();
+  });
+
+  it('doesn\'t change text without mentions', async () => {
+    const text = 'some chat text';
+    const result = await highlightMentions(text);
+    expect(result[0]).to.equal(text);
+  });
+  it('highlights existing users', async () => {
+    const text = '@user: message';
+    const result = await highlightMentions(text);
+    expect(result[0]).to.equal('[@user](/profile/111): message');
+  });
+  it('highlights special characters', async () => {
+    const text = '@user-dash: message @user_underscore';
+    const result = await highlightMentions(text);
+    expect(result[0]).to.equal('[@user-dash](/profile/444): message [@user_underscore](/profile/555)');
+  });
+  it('doesn\'t highlight nonexisting users', async () => {
+    const text = '@nouser message';
+    const result = await highlightMentions(text);
+    expect(result[0]).to.equal('@nouser message');
+  });
+  it('highlights multiple existing users', async () => {
+    const text = '@user message (@user2) @user3 @user';
+    const result = await highlightMentions(text);
+    expect(result[0]).to.equal('[@user](/profile/111) message ([@user2](/profile/222)) [@user3](/profile/333) [@user](/profile/111)');
+  });
+  it('doesn\'t highlight more than 5 users', async () => {
+    const text = '@user @user2 @user3 @user4 @user5 @user6';
+    const result = await highlightMentions(text);
+    expect(result[0]).to.equal(text);
+  });
+});
--- a/test/api/unit/libs/i18n.test.js
+++ b/test/api/unit/libs/i18n.test.js
@@ -1,31 +1,15 @@
 import {
  translations,
-  localePath,
  langCodes,
+  approvedLanguages,
 } from '../../../../website/server/libs/i18n';
-import fs from 'fs';
-import path from 'path';

 describe('i18n', () => {
-  let listOfLocales = [];
-
-  before((done) => {
-    fs.readdir(localePath, (err, files) => {
-      if (err) return done(err);
-
-      files.forEach((file) => {
-        if (fs.statSync(path.join(localePath, file)).isDirectory() === false) return;
-        listOfLocales.push(file);
-      });
-
-      listOfLocales = listOfLocales.sort();
-      done();
-    });
-  });
+  const listOfLocales = approvedLanguages.sort();

  describe('translations', () => {
    it('includes a translation object for each locale', () => {
-      listOfLocales.forEach((locale) => {
+      listOfLocales.forEach(locale => {
        expect(translations[locale]).to.be.an('object');
      });
    });
--- a/test/api/unit/libs/items/utils.test.js
+++ b/test/api/unit/libs/items/utils.test.js
@@ -100,14 +100,23 @@ describe('Items Utils', () => {
    });

    it('converts values for mounts paths to numbers', () => {
-      expect(castItemVal('items.mounts.Cactus-Base', '5')).to.equal(5);
-      expect(castItemVal('items.mounts.Aether-Invisible', '5')).to.equal(5);
-      expect(castItemVal('items.mounts.Aether-Invalid', '5')).to.equal(5);
+      expect(castItemVal('items.mounts.Cactus-Base', 'true')).to.equal(true);
+      expect(castItemVal('items.mounts.Aether-Invisible', 'false')).to.equal(false);
+      expect(castItemVal('items.mounts.Aether-Invalid', 'true')).to.equal(true);
+      expect(castItemVal('items.mounts.Aether-Invalid', 'truish')).to.equal(true);
+      expect(castItemVal('items.mounts.Aether-Invalid', 0)).to.equal(false);
    });

    it('converts values for quests paths to numbers', () => {
      expect(castItemVal('items.quests.atom3', '5')).to.equal(5);
      expect(castItemVal('items.quests.invalid', '5')).to.equal(5);
    });
+
+    it('converts values for owned gear', () => {
+      expect(castItemVal('items.gear.owned.shield_warrior_0', 'true')).to.equal(true);
+      expect(castItemVal('items.gear.owned.invalid', 'false')).to.equal(false);
+      expect(castItemVal('items.gear.owned.invalid', 'thruthy')).to.equal(true);
+      expect(castItemVal('items.gear.owned.invalid', 0)).to.equal(false);
+    });
  });
 });
--- a/test/api/unit/libs/logger.js
+++ b/test/api/unit/libs/logger.js
@@ -2,7 +2,7 @@ import winston from 'winston';
 import logger from '../../../../website/server/libs/logger';
 import {
  NotFound,
-} from '../../../../website/server/libs//errors';
+} from '../../../../website/server/libs/errors';

 describe('logger', () => {
  let logSpy;
@@ -34,7 +34,7 @@ describe('logger', () => {

    context('error object', () => {
      it('logs the stack and the err data', () => {
-        let errInstance = new Error('An error.');
+        const errInstance = new Error('An error.');
        logger.error(errInstance, {
          data: 1,
        }, 2, 3);
@@ -45,13 +45,13 @@ describe('logger', () => {
          errInstance.stack,
          { data: 1, fullError: errInstance },
          2,
-          3
+          3,
        );
      });

      it('logs the stack and the err data with it\'s own fullError property', () => {
-        let errInstance = new Error('An error.');
-        let anotherError = new Error('another error');
+        const errInstance = new Error('An error.');
+        const anotherError = new Error('another error');

        logger.error(errInstance, {
          data: 1,
@@ -64,12 +64,12 @@ describe('logger', () => {
          errInstance.stack,
          { data: 1, fullError: anotherError },
          2,
-          3
+          3,
        );
      });

      it('logs the error when errorData is null', () => {
-        let errInstance = new Error('An error.');
+        const errInstance = new Error('An error.');

        logger.error(errInstance, null, 2, 3);

@@ -79,12 +79,12 @@ describe('logger', () => {
          errInstance.stack,
          null,
          2,
-          3
+          3,
        );
      });

      it('logs the error when errorData is not an object', () => {
-        let errInstance = new Error('An error.');
+        const errInstance = new Error('An error.');

        logger.error(errInstance, true, 2, 3);

@@ -94,12 +94,12 @@ describe('logger', () => {
          errInstance.stack,
          true,
          2,
-          3
+          3,
        );
      });

      it('logs the error when errorData does not include isHandledError property', () => {
-        let errInstance = new Error('An error.');
+        const errInstance = new Error('An error.');

        logger.error(errInstance, { httpCode: 400 }, 2, 3);

@@ -109,12 +109,12 @@ describe('logger', () => {
          errInstance.stack,
          { httpCode: 400, fullError: errInstance },
          2,
-          3
+          3,
        );
      });

      it('logs the error when errorData includes isHandledError property but is a 500 error', () => {
-        let errInstance = new Error('An error.');
+        const errInstance = new Error('An error.');

        logger.error(errInstance, {
          isHandledError: true,
@@ -127,12 +127,12 @@ describe('logger', () => {
          errInstance.stack,
          { httpCode: 502, isHandledError: true, fullError: errInstance },
          2,
-          3
+          3,
        );
      });

      it('logs a warning when errorData includes isHandledError property and is not a 500 error', () => {
-        let errInstance = new Error('An error.');
+        const errInstance = new Error('An error.');

        logger.error(errInstance, {
          isHandledError: true,
@@ -145,12 +145,12 @@ describe('logger', () => {
          errInstance.stack,
          { httpCode: 403, isHandledError: true, fullError: errInstance },
          2,
-          3
+          3,
        );
      });

      it('logs additional data from a CustomError', () => {
-        let errInstance = new NotFound('An error.');
+        const errInstance = new NotFound('An error.');

        errInstance.customField = 'Some interesting data';

@@ -166,7 +166,7 @@ describe('logger', () => {
            },
          },
          2,
-          3
+          3,
        );
      });
    });
--- a/test/api/unit/libs/password.test.js
+++ b/test/api/unit/libs/password.test.js
@@ -1,9 +1,9 @@
 /* eslint-disable camelcase */

+import moment from 'moment';
 import {
  encrypt,
 } from '../../../../website/server/libs/encryption';
-import moment from 'moment';
 import {
  generateUser,
 } from '../../../helpers/api-integration/v3';
@@ -20,11 +20,11 @@ import {
 describe('Password Utilities', () => {
  describe('compare', () => {
    it('can compare a correct password hashed with SHA1', async () => {
-      let textPassword = 'mySecretPassword';
-      let salt = sha1MakeSalt();
-      let hashedPassword = sha1EncryptPassword(textPassword, salt);
+      const textPassword = 'mySecretPassword';
+      const salt = sha1MakeSalt();
+      const hashedPassword = sha1EncryptPassword(textPassword, salt);

-      let user = {
+      const user = {
        auth: {
          local: {
            hashed_password: hashedPassword,
@@ -34,16 +34,16 @@ describe('Password Utilities', () => {
        },
      };

-      let isValidPassword = await compare(user, textPassword);
+      const isValidPassword = await compare(user, textPassword);
      expect(isValidPassword).to.eql(true);
    });

    it('can compare an invalid password hashed with SHA1', async () => {
-      let textPassword = 'mySecretPassword';
-      let salt = sha1MakeSalt();
-      let hashedPassword = sha1EncryptPassword(textPassword, salt);
+      const textPassword = 'mySecretPassword';
+      const salt = sha1MakeSalt();
+      const hashedPassword = sha1EncryptPassword(textPassword, salt);

-      let user = {
+      const user = {
        auth: {
          local: {
            hashed_password: hashedPassword,
@@ -53,15 +53,15 @@ describe('Password Utilities', () => {
        },
      };

-      let isValidPassword = await compare(user, 'wrongPassword');
+      const isValidPassword = await compare(user, 'wrongPassword');
      expect(isValidPassword).to.eql(false);
    });

    it('can compare a correct password hashed with bcrypt', async () => {
-      let textPassword = 'mySecretPassword';
-      let hashedPassword = await bcryptHash(textPassword);
+      const textPassword = 'mySecretPassword';
+      const hashedPassword = await bcryptHash(textPassword);

-      let user = {
+      const user = {
        auth: {
          local: {
            hashed_password: hashedPassword,
@@ -70,15 +70,15 @@ describe('Password Utilities', () => {
        },
      };

-      let isValidPassword = await compare(user, textPassword);
+      const isValidPassword = await compare(user, textPassword);
      expect(isValidPassword).to.eql(true);
    });

    it('can compare an invalid password hashed with bcrypt', async () => {
-      let textPassword = 'mySecretPassword';
-      let hashedPassword = await bcryptHash(textPassword);
+      const textPassword = 'mySecretPassword';
+      const hashedPassword = await bcryptHash(textPassword);

-      let user = {
+      const user = {
        auth: {
          local: {
            hashed_password: hashedPassword,
@@ -87,7 +87,7 @@ describe('Password Utilities', () => {
        },
      };

-      let isValidPassword = await compare(user, 'wrongPassword');
+      const isValidPassword = await compare(user, 'wrongPassword');
      expect(isValidPassword).to.eql(false);
    });

@@ -101,18 +101,18 @@ describe('Password Utilities', () => {

    it('throws an error if passwordToCheck is missing', async () => {
      try {
-        await compare({a: true});
+        await compare({ a: true });
      } catch (e) {
        expect(e.toString()).to.equal('Error: user and passwordToCheck are required parameters.');
      }
    });

    it('defaults to SHA1 encryption if salt is provided', async () => {
-      let textPassword = 'mySecretPassword';
-      let salt = sha1MakeSalt();
-      let hashedPassword = sha1EncryptPassword(textPassword, salt);
+      const textPassword = 'mySecretPassword';
+      const salt = sha1MakeSalt();
+      const hashedPassword = sha1EncryptPassword(textPassword, salt);

-      let user = {
+      const user = {
        auth: {
          local: {
            hashed_password: hashedPassword,
@@ -122,7 +122,7 @@ describe('Password Utilities', () => {
        },
      };

-      let isValidPassword = await compare(user, textPassword);
+      const isValidPassword = await compare(user, textPassword);
      expect(isValidPassword).to.eql(true);
    });

@@ -141,29 +141,29 @@ describe('Password Utilities', () => {
    });

    it('returns true if comparing the same password', async () => {
-      let textPassword = 'mySecretPassword';
-      let hashedPassword = await bcryptHash(textPassword);
+      const textPassword = 'mySecretPassword';
+      const hashedPassword = await bcryptHash(textPassword);

-      let isValidPassword = await bcryptCompare(textPassword, hashedPassword);
+      const isValidPassword = await bcryptCompare(textPassword, hashedPassword);
      expect(isValidPassword).to.eql(true);
    });

    it('returns true if comparing a different password', async () => {
-      let textPassword = 'mySecretPassword';
-      let hashedPassword = await bcryptHash(textPassword);
+      const textPassword = 'mySecretPassword';
+      const hashedPassword = await bcryptHash(textPassword);

-      let isValidPassword = await bcryptCompare('anotherPassword', hashedPassword);
+      const isValidPassword = await bcryptCompare('anotherPassword', hashedPassword);
      expect(isValidPassword).to.eql(false);
    });
  });

  describe('convertToBcrypt', () => {
    it('converts an user password hashed with sha1 to bcrypt', async () => {
-      let textPassword = 'mySecretPassword';
-      let salt = sha1MakeSalt();
-      let hashedPassword = sha1EncryptPassword(textPassword, salt);
+      const textPassword = 'mySecretPassword';
+      const salt = sha1MakeSalt();
+      const hashedPassword = sha1EncryptPassword(textPassword, salt);

-      let user = {
+      const user = {
        auth: {
          local: {
            hashed_password: hashedPassword,
@@ -178,7 +178,7 @@ describe('Password Utilities', () => {
      expect(user.auth.local.passwordHashMethod).to.equal('bcrypt');
      expect(user.auth.local.hashed_password).to.be.a.string;

-      let isValidPassword = await compare(user, textPassword);
+      const isValidPassword = await compare(user, textPassword);
      expect(isValidPassword).to.eql(true);
    });

@@ -192,7 +192,7 @@ describe('Password Utilities', () => {

    it('throws an error if plainTextPassword is missing', async () => {
      try {
-        await convertToBcrypt({a: true});
+        await convertToBcrypt({ a: true });
      } catch (e) {
        expect(e.toString()).to.equal('Error: user and plainTextPassword are required parameters.');
      }
@@ -201,18 +201,18 @@ describe('Password Utilities', () => {

  describe('validatePasswordResetCodeAndFindUser', () => {
    it('returns false if the code is missing', async () => {
-      let res = await validatePasswordResetCodeAndFindUser();
+      const res = await validatePasswordResetCodeAndFindUser();
      expect(res).to.equal(false);
    });

    it('returns false if the code is invalid json', async () => {
-      let res = await validatePasswordResetCodeAndFindUser('invalid json');
+      const res = await validatePasswordResetCodeAndFindUser('invalid json');
      expect(res).to.equal(false);
    });

    it('returns false if the code cannot be decrypted', async () => {
-      let user = await generateUser();
-      let res = await validatePasswordResetCodeAndFindUser(JSON.stringify({ // not encrypted
+      const user = await generateUser();
+      const res = await validatePasswordResetCodeAndFindUser(JSON.stringify({ // not encrypted
        userId: user._id,
        expiresAt: new Date(),
      }));
@@ -220,71 +220,71 @@ describe('Password Utilities', () => {
    });

    it('returns false if the code is expired', async () => {
-      let user = await generateUser();
+      const user = await generateUser();

-      let code = encrypt(JSON.stringify({
+      const code = encrypt(JSON.stringify({
        userId: user._id,
-        expiresAt: moment().subtract({minutes: 1}),
+        expiresAt: moment().subtract({ minutes: 1 }),
      }));

      await user.update({
        'auth.local.passwordResetCode': code,
      });

-      let res = await validatePasswordResetCodeAndFindUser(code);
+      const res = await validatePasswordResetCodeAndFindUser(code);
      expect(res).to.equal(false);
    });

    it('returns false if the user does not exist', async () => {
-      let res = await validatePasswordResetCodeAndFindUser(encrypt(JSON.stringify({
+      const res = await validatePasswordResetCodeAndFindUser(encrypt(JSON.stringify({
        userId: Date.now().toString(),
-        expiresAt: moment().add({days: 1}),
+        expiresAt: moment().add({ days: 1 }),
      })));
      expect(res).to.equal(false);
    });

    it('returns false if the user has no local auth', async () => {
-      let user = await generateUser({
+      const user = await generateUser({
        auth: {
          facebook: {},
        },
      });
-      let res = await validatePasswordResetCodeAndFindUser(encrypt(JSON.stringify({
+      const res = await validatePasswordResetCodeAndFindUser(encrypt(JSON.stringify({
        userId: user._id,
-        expiresAt: moment().add({days: 1}),
+        expiresAt: moment().add({ days: 1 }),
      })));
      expect(res).to.equal(false);
    });

    it('returns false if the code doesn\'t match the one saved at user.auth.passwordResetCode', async () => {
-      let user = await generateUser();
+      const user = await generateUser();

-      let code = encrypt(JSON.stringify({
+      const code = encrypt(JSON.stringify({
        userId: user._id,
-        expiresAt: moment().add({days: 1}),
+        expiresAt: moment().add({ days: 1 }),
      }));

      await user.update({
        'auth.local.passwordResetCode': 'invalid',
      });

-      let res = await validatePasswordResetCodeAndFindUser(code);
+      const res = await validatePasswordResetCodeAndFindUser(code);
      expect(res).to.equal(false);
    });

    it('returns the user if the password reset code is valid', async () => {
-      let user = await generateUser();
+      const user = await generateUser();

-      let code = encrypt(JSON.stringify({
+      const code = encrypt(JSON.stringify({
        userId: user._id,
-        expiresAt: moment().add({days: 1}),
+        expiresAt: moment().add({ days: 1 }),
      }));

      await user.update({
        'auth.local.passwordResetCode': code,
      });

-      let res = await validatePasswordResetCodeAndFindUser(code);
+      const res = await validatePasswordResetCodeAndFindUser(code);
      expect(res).not.to.equal(false);
      expect(res._id).to.equal(user._id);
    });
@@ -293,8 +293,8 @@ describe('Password Utilities', () => {
  describe('bcrypt', () => {
    describe('Hash', () => {
      it('returns a hashed string', async () => {
-        let textPassword = 'mySecretPassword';
-        let hashedPassword = await bcryptHash(textPassword);
+        const textPassword = 'mySecretPassword';
+        const hashedPassword = await bcryptHash(textPassword);

        expect(hashedPassword).to.be.a.string;
      });
@@ -302,18 +302,18 @@ describe('Password Utilities', () => {

    describe('Compare', () => {
      it('returns true if comparing the same password', async () => {
-        let textPassword = 'mySecretPassword';
-        let hashedPassword = await bcryptHash(textPassword);
+        const textPassword = 'mySecretPassword';
+        const hashedPassword = await bcryptHash(textPassword);

-        let isValidPassword = await bcryptCompare(textPassword, hashedPassword);
+        const isValidPassword = await bcryptCompare(textPassword, hashedPassword);
        expect(isValidPassword).to.eql(true);
      });

      it('returns true if comparing a different password', async () => {
-        let textPassword = 'mySecretPassword';
-        let hashedPassword = await bcryptHash(textPassword);
+        const textPassword = 'mySecretPassword';
+        const hashedPassword = await bcryptHash(textPassword);

-        let isValidPassword = await bcryptCompare('anotherPassword', hashedPassword);
+        const isValidPassword = await bcryptCompare('anotherPassword', hashedPassword);
        expect(isValidPassword).to.eql(false);
      });
    });
@@ -322,19 +322,19 @@ describe('Password Utilities', () => {
  describe('SHA1', () => {
    describe('Encrypt', () => {
      it('always encrypt the same password to the same value when using the same salt', () => {
-        let textPassword = 'mySecretPassword';
-        let salt = sha1MakeSalt();
-        let encryptedPassword = sha1EncryptPassword(textPassword, salt);
+        const textPassword = 'mySecretPassword';
+        const salt = sha1MakeSalt();
+        const encryptedPassword = sha1EncryptPassword(textPassword, salt);

        expect(sha1EncryptPassword(textPassword, salt)).to.eql(encryptedPassword);
      });

      it('never encrypt the same password to the same value when using a different salt', () => {
-        let textPassword = 'mySecretPassword';
-        let aSalt = sha1MakeSalt();
-        let anotherSalt = sha1MakeSalt();
-        let anEncryptedPassword = sha1EncryptPassword(textPassword, aSalt);
-        let anotherEncryptedPassword = sha1EncryptPassword(textPassword, anotherSalt);
+        const textPassword = 'mySecretPassword';
+        const aSalt = sha1MakeSalt();
+        const anotherSalt = sha1MakeSalt();
+        const anEncryptedPassword = sha1EncryptPassword(textPassword, aSalt);
+        const anotherEncryptedPassword = sha1EncryptPassword(textPassword, anotherSalt);

        expect(anEncryptedPassword).not.to.eql(anotherEncryptedPassword);
      });
@@ -342,14 +342,14 @@ describe('Password Utilities', () => {

    describe('Make Salt', () => {
      it('creates a salt with length 10 by default', () => {
-        let salt = sha1MakeSalt();
+        const salt = sha1MakeSalt();

        expect(salt.length).to.eql(10);
      });

      it('can create a salt of any length', () => {
-        let length = 24;
-        let salt = sha1MakeSalt(length);
+        const length = 24;
+        const salt = sha1MakeSalt(length);

        expect(salt.length).to.eql(length);
      });
--- a/test/api/unit/libs/payments/amazon/cancel.test.js
+++ b/test/api/unit/libs/payments/amazon/cancel.test.js
@@ -2,19 +2,20 @@ import moment from 'moment';

 import {
  generateGroup,
-} from '../../../../../helpers/api-unit.helper.js';
+} from '../../../../../helpers/api-unit.helper';
 import { model as User } from '../../../../../../website/server/models/user';
 import amzLib from '../../../../../../website/server/libs/payments/amazon';
 import payments from '../../../../../../website/server/libs/payments/payments';
 import common from '../../../../../../website/common';
 import { createNonLeaderGroupMember } from '../paymentHelpers';

-const i18n = common.i18n;
+const { i18n } = common;

 describe('Amazon Payments - Cancel Subscription', () => {
  const subKey = 'basic_3mo';

-  let user, group, headers, billingAgreementId, subscriptionBlock, subscriptionLength;
+  let user; let group; let headers; let billingAgreementId; let subscriptionBlock; let
+    subscriptionLength;
  let getBillingAgreementDetailsSpy;
  let paymentCancelSubscriptionSpy;

@@ -50,7 +51,7 @@ describe('Amazon Payments - Cancel Subscription', () => {
    getBillingAgreementDetailsSpy = sinon.stub(amzLib, 'getBillingAgreementDetails')
      .resolves({
        BillingAgreementDetails: {
-          BillingAgreementStatus: {State: 'Open'},
+          BillingAgreementStatus: { State: 'Open' },
        },
      });
  }
@@ -81,7 +82,7 @@ describe('Amazon Payments - Cancel Subscription', () => {
    getBillingAgreementDetailsSpy = sinon.stub(amzLib, 'getBillingAgreementDetails');
    getBillingAgreementDetailsSpy.resolves({
      BillingAgreementDetails: {
-        BillingAgreementStatus: {State: 'Closed'},
+        BillingAgreementStatus: { State: 'Closed' },
      },
    });

@@ -89,7 +90,7 @@ describe('Amazon Payments - Cancel Subscription', () => {
    paymentCancelSubscriptionSpy.resolves({});
  });

-  afterEach(function () {
+  afterEach(() => {
    amzLib.getBillingAgreementDetails.restore();
    payments.cancelSubscription.restore();
  });
@@ -97,7 +98,7 @@ describe('Amazon Payments - Cancel Subscription', () => {
  it('should throw an error if we are missing a subscription', async () => {
    user.purchased.plan.customerId = undefined;

-    await expect(amzLib.cancelSubscription({user}))
+    await expect(amzLib.cancelSubscription({ user }))
      .to.eventually.be.rejected.and.to.eql({
        httpCode: 401,
        name: 'NotAuthorized',
@@ -108,7 +109,7 @@ describe('Amazon Payments - Cancel Subscription', () => {
  it('should cancel a user subscription', async () => {
    billingAgreementId = user.purchased.plan.customerId;

-    await amzLib.cancelSubscription({user, headers});
+    await amzLib.cancelSubscription({ user, headers });

    expectAmazonCancelUserSubscriptionSpy();
    expectAmazonStubs();
@@ -117,10 +118,10 @@ describe('Amazon Payments - Cancel Subscription', () => {
  it('should close a user subscription if amazon not closed', async () => {
    amzLib.getBillingAgreementDetails.restore();
    expectBillingAggreementDetailSpy();
-    let closeBillingAgreementSpy = sinon.stub(amzLib, 'closeBillingAgreement').resolves({});
+    const closeBillingAgreementSpy = sinon.stub(amzLib, 'closeBillingAgreement').resolves({});
    billingAgreementId = user.purchased.plan.customerId;

-    await amzLib.cancelSubscription({user, headers});
+    await amzLib.cancelSubscription({ user, headers });

    expectAmazonStubs();
    expect(closeBillingAgreementSpy).to.be.calledOnce;
@@ -132,7 +133,7 @@ describe('Amazon Payments - Cancel Subscription', () => {
  });

  it('should throw an error if group is not found', async () => {
-    await expect(amzLib.cancelSubscription({user, groupId: 'fake-id'}))
+    await expect(amzLib.cancelSubscription({ user, groupId: 'fake-id' }))
      .to.eventually.be.rejected.and.to.eql({
        httpCode: 404,
        name: 'NotFound',
@@ -141,9 +142,9 @@ describe('Amazon Payments - Cancel Subscription', () => {
  });

  it('should throw an error if user is not group leader', async () => {
-    let nonLeader = await createNonLeaderGroupMember(group);
+    const nonLeader = await createNonLeaderGroupMember(group);

-    await expect(amzLib.cancelSubscription({user: nonLeader, groupId: group._id}))
+    await expect(amzLib.cancelSubscription({ user: nonLeader, groupId: group._id }))
      .to.eventually.be.rejected.and.to.eql({
        httpCode: 401,
        name: 'NotAuthorized',
@@ -154,7 +155,7 @@ describe('Amazon Payments - Cancel Subscription', () => {
  it('should cancel a group subscription', async () => {
    billingAgreementId = group.purchased.plan.customerId;

-    await amzLib.cancelSubscription({user, groupId: group._id, headers});
+    await amzLib.cancelSubscription({ user, groupId: group._id, headers });

    expectAmazonCancelGroupSubscriptionSpy(group._id);
    expectAmazonStubs();
@@ -163,10 +164,10 @@ describe('Amazon Payments - Cancel Subscription', () => {
  it('should close a group subscription if amazon not closed', async () => {
    amzLib.getBillingAgreementDetails.restore();
    expectBillingAggreementDetailSpy();
-    let closeBillingAgreementSpy = sinon.stub(amzLib, 'closeBillingAgreement').resolves({});
+    const closeBillingAgreementSpy = sinon.stub(amzLib, 'closeBillingAgreement').resolves({});
    billingAgreementId = group.purchased.plan.customerId;

-    await amzLib.cancelSubscription({user, groupId: group._id, headers});
+    await amzLib.cancelSubscription({ user, groupId: group._id, headers });

    expectAmazonStubs();
    expect(closeBillingAgreementSpy).to.be.calledOnce;
--- a/test/api/unit/libs/payments/amazon/checkout.test.js
+++ b/test/api/unit/libs/payments/amazon/checkout.test.js
@@ -3,11 +3,12 @@ import amzLib from '../../../../../../website/server/libs/payments/amazon';
 import payments from '../../../../../../website/server/libs/payments/payments';
 import common from '../../../../../../website/common';

-const i18n = common.i18n;
+const { i18n } = common;

 describe('Amazon Payments - Checkout', () => {
  const subKey = 'basic_3mo';
-  let user, orderReferenceId, headers;
+  let user; let orderReferenceId; let
+    headers;
  let setOrderReferenceDetailsSpy;
  let confirmOrderReferenceSpy;
  let authorizeSpy;
@@ -62,7 +63,7 @@ describe('Amazon Payments - Checkout', () => {
    expect(closeOrderReferenceSpy).to.be.calledWith({ AmazonOrderReferenceId: orderReferenceId });
  }

-  beforeEach(function () {
+  beforeEach(() => {
    user = new User();
    headers = {};
    orderReferenceId = 'orderReferenceId';
@@ -88,7 +89,7 @@ describe('Amazon Payments - Checkout', () => {
    sinon.stub(common, 'uuid').returns('uuid-generated');
  });

-  afterEach(function () {
+  afterEach(() => {
    amzLib.setOrderReferenceDetails.restore();
    amzLib.confirmOrderReference.restore();
    amzLib.authorize.restore();
@@ -101,7 +102,7 @@ describe('Amazon Payments - Checkout', () => {
  function expectBuyGemsStub (paymentMethod, gift) {
    expect(paymentBuyGemsStub).to.be.calledOnce;

-    let expectedArgs = {
+    const expectedArgs = {
      user,
      paymentMethod,
      headers,
@@ -112,7 +113,7 @@ describe('Amazon Payments - Checkout', () => {

  it('should purchase gems', async () => {
    sinon.stub(user, 'canGetGems').resolves(true);
-    await amzLib.checkout({user, orderReferenceId, headers});
+    await amzLib.checkout({ user, orderReferenceId, headers });

    expectBuyGemsStub(amzLib.constants.PAYMENT_METHOD);
    expectAmazonStubs();
@@ -121,9 +122,9 @@ describe('Amazon Payments - Checkout', () => {
  });

  it('should error if gem amount is too low', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    receivingUser.save();
-    let gift = {
+    const gift = {
      type: 'gems',
      gems: {
        amount: 0,
@@ -131,7 +132,9 @@ describe('Amazon Payments - Checkout', () => {
      },
    };

-    await expect(amzLib.checkout({gift, user, orderReferenceId, headers}))
+    await expect(amzLib.checkout({
+      gift, user, orderReferenceId, headers,
+    }))
      .to.eventually.be.rejected.and.to.eql({
        httpCode: 400,
        message: 'Amount must be at least 1.',
@@ -141,18 +144,19 @@ describe('Amazon Payments - Checkout', () => {

  it('should error if user cannot get gems gems', async () => {
    sinon.stub(user, 'canGetGems').resolves(false);
-    await expect(amzLib.checkout({user, orderReferenceId, headers})).to.eventually.be.rejected.and.to.eql({
-      httpCode: 401,
-      message: i18n.t('groupPolicyCannotGetGems'),
-      name: 'NotAuthorized',
-    });
+    await expect(amzLib.checkout({ user, orderReferenceId, headers }))
+      .to.eventually.be.rejected.and.to.eql({
+        httpCode: 401,
+        message: i18n.t('groupPolicyCannotGetGems'),
+        name: 'NotAuthorized',
+      });
    user.canGetGems.restore();
  });

  it('should gift gems', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    await receivingUser.save();
-    let gift = {
+    const gift = {
      type: 'gems',
      uuid: receivingUser._id,
      gems: {
@@ -160,16 +164,18 @@ describe('Amazon Payments - Checkout', () => {
      },
    };
    amount = 16 / 4;
-    await amzLib.checkout({gift, user, orderReferenceId, headers});
+    await amzLib.checkout({
+      gift, user, orderReferenceId, headers,
+    });

    expectBuyGemsStub(amzLib.constants.PAYMENT_METHOD_GIFT, gift);
    expectAmazonStubs();
  });

  it('should gift a subscription', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    receivingUser.save();
-    let gift = {
+    const gift = {
      type: 'subscription',
      subscription: {
        key: subKey,
@@ -178,7 +184,9 @@ describe('Amazon Payments - Checkout', () => {
    };
    amount = common.content.subscriptionBlocks[subKey].price;

-    await amzLib.checkout({user, orderReferenceId, headers, gift});
+    await amzLib.checkout({
+      user, orderReferenceId, headers, gift,
+    });

    gift.member = receivingUser;
    expect(paymentCreateSubscritionStub).to.be.calledOnce;
--- a/test/api/unit/libs/payments/amazon/subscribe.test.js
+++ b/test/api/unit/libs/payments/amazon/subscribe.test.js
@@ -2,18 +2,19 @@ import cc from 'coupon-code';

 import {
  generateGroup,
-} from '../../../../../helpers/api-unit.helper.js';
+} from '../../../../../helpers/api-unit.helper';
 import { model as User } from '../../../../../../website/server/models/user';
 import { model as Coupon } from '../../../../../../website/server/models/coupon';
 import amzLib from '../../../../../../website/server/libs/payments/amazon';
 import payments from '../../../../../../website/server/libs/payments/payments';
 import common from '../../../../../../website/common';

-const i18n = common.i18n;
+const { i18n } = common;

 describe('Amazon Payments - Subscribe', () => {
  const subKey = 'basic_3mo';
-  let user, group, amount, billingAgreementId, sub, coupon, groupId, headers;
+  let user; let group; let amount; let billingAgreementId; let sub; let coupon; let groupId; let
+    headers;
  let amazonSetBillingAgreementDetailsSpy;
  let amazonConfirmBillingAgreementSpy;
  let amazonAuthorizeOnBillingAgreementSpy;
@@ -60,7 +61,7 @@ describe('Amazon Payments - Subscribe', () => {
    sinon.stub(common, 'uuid').returns('uuid-generated');
  });

-  afterEach(function () {
+  afterEach(() => {
    amzLib.setBillingAgreementDetails.restore();
    amzLib.confirmBillingAgreement.restore();
    amzLib.authorizeOnBillingAgreement.restore();
@@ -168,7 +169,7 @@ describe('Amazon Payments - Subscribe', () => {
    sub.key = 'google_6mo';
    coupon = 'example-coupon';

-    let couponModel = new Coupon();
+    const couponModel = new Coupon();
    couponModel.event = 'google_6mo';
    await couponModel.save();

@@ -195,9 +196,9 @@ describe('Amazon Payments - Subscribe', () => {
    sub.key = 'google_6mo';
    coupon = 'example-coupon';

-    let couponModel = new Coupon();
+    const couponModel = new Coupon();
    couponModel.event = 'google_6mo';
-    let updatedCouponModel = await couponModel.save();
+    const updatedCouponModel = await couponModel.save();

    sinon.stub(cc, 'validate').returns(updatedCouponModel._id);

--- a/test/api/unit/libs/payments/amazon/upgrade-groupplan.test.js
+++ b/test/api/unit/libs/payments/amazon/upgrade-groupplan.test.js
@@ -2,16 +2,17 @@ import uuid from 'uuid';

 import {
  generateGroup,
-} from '../../../../../helpers/api-unit.helper.js';
+} from '../../../../../helpers/api-unit.helper';
 import { model as User } from '../../../../../../website/server/models/user';
 import { model as Group } from '../../../../../../website/server/models/group';
 import amzLib from '../../../../../../website/server/libs/payments/amazon';
 import payments from '../../../../../../website/server/libs/payments/payments';

 describe('#upgradeGroupPlan', () => {
-  let spy, data, user, group, uuidString;
+  let spy; let data; let user; let group; let
+    uuidString;

-  beforeEach(async function () {
+  beforeEach(async () => {
    user = new User();
    user.profile.name = 'sender';

@@ -46,7 +47,7 @@ describe('#upgradeGroupPlan', () => {
    data.sub.quantity = 3;
  });

-  afterEach(function () {
+  afterEach(() => {
    amzLib.authorizeOnBillingAgreement.restore();
    uuid.v4.restore();
  });
@@ -55,7 +56,7 @@ describe('#upgradeGroupPlan', () => {
    data.paymentMethod = amzLib.constants.PAYMENT_METHOD;
    await payments.createSubscription(data);

-    let updatedGroup = await Group.findById(group._id).exec();
+    const updatedGroup = await Group.findById(group._id).exec();

    updatedGroup.memberCount += 1;
    await updatedGroup.save();
--- a/test/api/unit/libs/payments/apple.test.js
+++ b/test/api/unit/libs/payments/apple.test.js
@@ -1,21 +1,22 @@
 /* eslint-disable camelcase */
-import iapModule from '../../../../../website/server/libs/inAppPurchases';
+import moment from 'moment';
 import payments from '../../../../../website/server/libs/payments/payments';
 import applePayments from '../../../../../website/server/libs/payments/apple';
 import iap from '../../../../../website/server/libs/inAppPurchases';
-import {model as User} from '../../../../../website/server/models/user';
+import { model as User } from '../../../../../website/server/models/user';
 import common from '../../../../../website/common';
-import moment from 'moment';
-import {mockFindById, restoreFindById} from '../../../../helpers/mongoose.helper';
+import { mockFindById, restoreFindById } from '../../../../helpers/mongoose.helper';

-const i18n = common.i18n;
+const { i18n } = common;

-describe('Apple Payments', ()  => {
-  let subKey = 'basic_3mo';
+describe('Apple Payments', () => {
+  const subKey = 'basic_3mo';

  describe('verifyGemPurchase', () => {
-    let sku, user, token, receipt, headers;
-    let iapSetupStub, iapValidateStub, iapIsValidatedStub, paymentBuyGemsStub, iapGetPurchaseDataStub;
+    let sku; let user; let token; let receipt; let
+      headers;
+    let iapSetupStub; let iapValidateStub; let iapIsValidatedStub; let paymentBuyGemsStub; let
+      iapGetPurchaseDataStub;

    beforeEach(() => {
      token = 'testToken';
@@ -24,33 +25,34 @@ describe('Apple Payments', ()  => {
      receipt = `{"token": "${token}", "productId": "${sku}"}`;
      headers = {};

-      iapSetupStub = sinon.stub(iapModule, 'setup')
+      iapSetupStub = sinon.stub(iap, 'setup')
        .resolves();
-      iapValidateStub = sinon.stub(iapModule, 'validate')
+      iapValidateStub = sinon.stub(iap, 'validate')
        .resolves({});
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(true);
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-        .returns([{productId: 'com.habitrpg.ios.Habitica.21gems',
-                   transactionId: token,
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+        .returns([{
+          productId: 'com.habitrpg.ios.Habitica.21gems',
+          transactionId: token,
        }]);
      paymentBuyGemsStub = sinon.stub(payments, 'buyGems').resolves({});
    });

    afterEach(() => {
-      iapModule.setup.restore();
-      iapModule.validate.restore();
-      iapModule.isValidated.restore();
-      iapModule.getPurchaseData.restore();
+      iap.setup.restore();
+      iap.validate.restore();
+      iap.isValidated.restore();
+      iap.getPurchaseData.restore();
      payments.buyGems.restore();
    });

    it('should throw an error if receipt is invalid', async () => {
-      iapModule.isValidated.restore();
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iap.isValidated.restore();
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(false);

-      await expect(applePayments.verifyGemPurchase({user, receipt, headers}))
+      await expect(applePayments.verifyGemPurchase({ user, receipt, headers }))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -60,9 +62,9 @@ describe('Apple Payments', ()  => {

    it('should throw an error if getPurchaseData is invalid', async () => {
      iapGetPurchaseDataStub.restore();
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData').returns([]);
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData').returns([]);

-      await expect(applePayments.verifyGemPurchase({user, receipt, headers}))
+      await expect(applePayments.verifyGemPurchase({ user, receipt, headers }))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -72,7 +74,7 @@ describe('Apple Payments', ()  => {

    it('errors if the user cannot purchase gems', async () => {
      sinon.stub(user, 'canGetGems').resolves(false);
-      await expect(applePayments.verifyGemPurchase({user, receipt, headers}))
+      await expect(applePayments.verifyGemPurchase({ user, receipt, headers }))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -85,12 +87,13 @@ describe('Apple Payments', ()  => {
    it('errors if amount does not exist', async () => {
      sinon.stub(user, 'canGetGems').resolves(true);
      iapGetPurchaseDataStub.restore();
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-        .returns([{productId: 'badProduct',
-                   transactionId: token,
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+        .returns([{
+          productId: 'badProduct',
+          transactionId: token,
        }]);

-      await expect(applePayments.verifyGemPurchase({user, receipt, headers}))
+      await expect(applePayments.verifyGemPurchase({ user, receipt, headers }))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -126,13 +129,14 @@ describe('Apple Payments', ()  => {
    gemsCanPurchase.forEach(gemTest => {
      it(`purchases ${gemTest.productId} gems`, async () => {
        iapGetPurchaseDataStub.restore();
-        iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-          .returns([{productId: gemTest.productId,
-                     transactionId: token,
+        iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+          .returns([{
+            productId: gemTest.productId,
+            transactionId: token,
          }]);

        sinon.stub(user, 'canGetGems').resolves(true);
-        await applePayments.verifyGemPurchase({user, receipt, headers});
+        await applePayments.verifyGemPurchase({ user, receipt, headers });

        expect(iapSetupStub).to.be.calledOnce;
        expect(iapValidateStub).to.be.calledOnce;
@@ -160,13 +164,16 @@ describe('Apple Payments', ()  => {
      mockFindById(receivingUser);

      iapGetPurchaseDataStub.restore();
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-        .returns([{productId: gemsCanPurchase[0].productId,
-                   transactionId: token,
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+        .returns([{
+          productId: gemsCanPurchase[0].productId,
+          transactionId: token,
        }]);

-      const gift = {uuid: receivingUser._id};
-      await applePayments.verifyGemPurchase({user, gift, receipt, headers});
+      const gift = { uuid: receivingUser._id };
+      await applePayments.verifyGemPurchase({
+        user, gift, receipt, headers,
+      });

      expect(iapSetupStub).to.be.calledOnce;
      expect(iapValidateStub).to.be.calledOnce;
@@ -187,8 +194,11 @@ describe('Apple Payments', ()  => {
  });

  describe('subscribe', () => {
-    let sub, sku, user, token, receipt, headers, nextPaymentProcessing;
-    let iapSetupStub, iapValidateStub, iapIsValidatedStub, paymentsCreateSubscritionStub, iapGetPurchaseDataStub;
+    let sub; let sku; let user; let token; let receipt; let headers; let
+      nextPaymentProcessing;
+    let iapSetupStub; let iapValidateStub; let iapIsValidatedStub;
+    let paymentsCreateSubscritionStub; let
+      iapGetPurchaseDataStub;

    beforeEach(() => {
      sub = common.content.subscriptionBlocks[subKey];
@@ -197,25 +207,25 @@ describe('Apple Payments', ()  => {
      token = 'test-token';
      headers = {};
      receipt = `{"token": "${token}"}`;
-      nextPaymentProcessing = moment.utc().add({days: 2});
+      nextPaymentProcessing = moment.utc().add({ days: 2 });

-      iapSetupStub = sinon.stub(iapModule, 'setup')
+      iapSetupStub = sinon.stub(iap, 'setup')
        .resolves();
-      iapValidateStub = sinon.stub(iapModule, 'validate')
+      iapValidateStub = sinon.stub(iap, 'validate')
        .resolves({});
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(true);
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
        .returns([{
-          expirationDate: moment.utc().subtract({day: 1}).toDate(),
+          expirationDate: moment.utc().subtract({ day: 1 }).toDate(),
          productId: sku,
          transactionId: token,
        }, {
-          expirationDate: moment.utc().add({day: 1}).toDate(),
+          expirationDate: moment.utc().add({ day: 1 }).toDate(),
          productId: 'wrongsku',
          transactionId: token,
        }, {
-          expirationDate: moment.utc().add({day: 1}).toDate(),
+          expirationDate: moment.utc().add({ day: 1 }).toDate(),
          productId: sku,
          transactionId: token,
        }]);
@@ -223,10 +233,10 @@ describe('Apple Payments', ()  => {
    });

    afterEach(() => {
-      iapModule.setup.restore();
-      iapModule.validate.restore();
-      iapModule.isValidated.restore();
-      iapModule.getPurchaseData.restore();
+      iap.setup.restore();
+      iap.validate.restore();
+      iap.isValidated.restore();
+      iap.getPurchaseData.restore();
      if (payments.createSubscription.restore) payments.createSubscription.restore();
    });

@@ -240,8 +250,8 @@ describe('Apple Payments', ()  => {
    });

    it('should throw an error if receipt is invalid', async () => {
-      iapModule.isValidated.restore();
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iap.isValidated.restore();
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(false);

      await expect(applePayments.subscribe(sku, user, receipt, headers, nextPaymentProcessing))
@@ -272,10 +282,10 @@ describe('Apple Payments', ()  => {
    ];
    subOptions.forEach(option => {
      it(`creates a user subscription for ${option.sku}`, async () => {
-        iapModule.getPurchaseData.restore();
-        iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
+        iap.getPurchaseData.restore();
+        iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
          .returns([{
-            expirationDate: moment.utc().add({day: 1}).toDate(),
+            expirationDate: moment.utc().add({ day: 1 }).toDate(),
            productId: option.sku,
            transactionId: token,
          }]);
@@ -319,8 +329,10 @@ describe('Apple Payments', ()  => {
  });

  describe('cancelSubscribe ', () => {
-    let user, token, receipt, headers, customerId, expirationDate;
-    let iapSetupStub, iapValidateStub, iapIsValidatedStub, iapGetPurchaseDataStub, paymentCancelSubscriptionSpy;
+    let user; let token; let receipt; let headers; let customerId; let
+      expirationDate;
+    let iapSetupStub; let iapValidateStub; let iapIsValidatedStub; let iapGetPurchaseDataStub; let
+      paymentCancelSubscriptionSpy;

    beforeEach(async () => {
      token = 'test-token';
@@ -329,15 +341,15 @@ describe('Apple Payments', ()  => {
      customerId = 'test-customerId';
      expirationDate = moment.utc();

-      iapSetupStub = sinon.stub(iapModule, 'setup')
+      iapSetupStub = sinon.stub(iap, 'setup')
        .resolves();
-      iapValidateStub = sinon.stub(iapModule, 'validate')
+      iapValidateStub = sinon.stub(iap, 'validate')
        .resolves({
          expirationDate,
        });
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-        .returns([{expirationDate: expirationDate.toDate()}]);
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+        .returns([{ expirationDate: expirationDate.toDate() }]);
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(true);

      user = new User();
@@ -350,11 +362,11 @@ describe('Apple Payments', ()  => {
      paymentCancelSubscriptionSpy = sinon.stub(payments, 'cancelSubscription').resolves({});
    });

-    afterEach(function () {
-      iapModule.setup.restore();
-      iapModule.validate.restore();
-      iapModule.isValidated.restore();
-      iapModule.getPurchaseData.restore();
+    afterEach(() => {
+      iap.setup.restore();
+      iap.validate.restore();
+      iap.isValidated.restore();
+      iap.getPurchaseData.restore();
      payments.cancelSubscription.restore();
    });

@@ -370,9 +382,9 @@ describe('Apple Payments', ()  => {
    });

    it('should throw an error if subscription is still valid', async () => {
-      iapModule.getPurchaseData.restore();
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-        .returns([{expirationDate: expirationDate.add({day: 1}).toDate()}]);
+      iap.getPurchaseData.restore();
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+        .returns([{ expirationDate: expirationDate.add({ day: 1 }).toDate() }]);

      await expect(applePayments.cancelSubscribe(user, headers))
        .to.eventually.be.rejected.and.to.eql({
@@ -383,8 +395,8 @@ describe('Apple Payments', ()  => {
    });

    it('should throw an error if receipt is invalid', async () => {
-      iapModule.isValidated.restore();
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iap.isValidated.restore();
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(false);

      await expect(applePayments.cancelSubscribe(user, headers))
--- a/test/api/unit/libs/payments/google.test.js
+++ b/test/api/unit/libs/payments/google.test.js
@@ -1,21 +1,22 @@
 /* eslint-disable camelcase */
-import iapModule from '../../../../../website/server/libs/inAppPurchases';
+import moment from 'moment';
 import payments from '../../../../../website/server/libs/payments/payments';
 import googlePayments from '../../../../../website/server/libs/payments/google';
 import iap from '../../../../../website/server/libs/inAppPurchases';
-import {model as User} from '../../../../../website/server/models/user';
+import { model as User } from '../../../../../website/server/models/user';
 import common from '../../../../../website/common';
-import moment from 'moment';
-import {mockFindById, restoreFindById} from '../../../../helpers/mongoose.helper';
+import { mockFindById, restoreFindById } from '../../../../helpers/mongoose.helper';

-const i18n = common.i18n;
+const { i18n } = common;

-describe('Google Payments', ()  => {
-  let subKey = 'basic_3mo';
+describe('Google Payments', () => {
+  const subKey = 'basic_3mo';

  describe('verifyGemPurchase', () => {
-    let sku, user, token, receipt, signature, headers;
-    let iapSetupStub, iapValidateStub, iapIsValidatedStub, paymentBuyGemsStub;
+    let sku; let user; let token; let receipt; let signature; let
+      headers;
+    let iapSetupStub; let iapValidateStub; let iapIsValidatedStub; let
+      paymentBuyGemsStub;

    beforeEach(() => {
      sku = 'com.habitrpg.android.habitica.iap.21gems';
@@ -24,28 +25,30 @@ describe('Google Payments', ()  => {
      signature = '';
      headers = {};

-      iapSetupStub = sinon.stub(iapModule, 'setup')
+      iapSetupStub = sinon.stub(iap, 'setup')
        .resolves();
-      iapValidateStub = sinon.stub(iapModule, 'validate')
+      iapValidateStub = sinon.stub(iap, 'validate')
        .resolves({});
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(true);
      paymentBuyGemsStub = sinon.stub(payments, 'buyGems').resolves({});
    });

    afterEach(() => {
-      iapModule.setup.restore();
-      iapModule.validate.restore();
-      iapModule.isValidated.restore();
+      iap.setup.restore();
+      iap.validate.restore();
+      iap.isValidated.restore();
      payments.buyGems.restore();
    });

    it('should throw an error if receipt is invalid', async () => {
-      iapModule.isValidated.restore();
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iap.isValidated.restore();
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(false);

-      await expect(googlePayments.verifyGemPurchase({user, receipt, signature, headers}))
+      await expect(googlePayments.verifyGemPurchase({
+        user, receipt, signature, headers,
+      }))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -56,7 +59,9 @@ describe('Google Payments', ()  => {
    it('should throw an error if productId is invalid', async () => {
      receipt = `{"token": "${token}", "productId": "invalid"}`;

-      await expect(googlePayments.verifyGemPurchase({user, receipt, signature, headers}))
+      await expect(googlePayments.verifyGemPurchase({
+        user, receipt, signature, headers,
+      }))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -67,7 +72,9 @@ describe('Google Payments', ()  => {
    it('should throw an error if user cannot purchase gems', async () => {
      sinon.stub(user, 'canGetGems').resolves(false);

-      await expect(googlePayments.verifyGemPurchase({user, receipt, signature, headers}))
+      await expect(googlePayments.verifyGemPurchase({
+        user, receipt, signature, headers,
+      }))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -79,7 +86,9 @@ describe('Google Payments', ()  => {

    it('purchases gems', async () => {
      sinon.stub(user, 'canGetGems').resolves(true);
-      await googlePayments.verifyGemPurchase({user, receipt, signature, headers});
+      await googlePayments.verifyGemPurchase({
+        user, receipt, signature, headers,
+      });

      expect(iapSetupStub).to.be.calledOnce;
      expect(iapValidateStub).to.be.calledOnce;
@@ -107,8 +116,10 @@ describe('Google Payments', ()  => {

      mockFindById(receivingUser);

-      const gift = {uuid: receivingUser._id};
-      await googlePayments.verifyGemPurchase({user, gift, receipt, signature, headers});
+      const gift = { uuid: receivingUser._id };
+      await googlePayments.verifyGemPurchase({
+        user, gift, receipt, signature, headers,
+      });

      expect(iapSetupStub).to.be.calledOnce;
      expect(iapValidateStub).to.be.calledOnce;
@@ -131,8 +142,10 @@ describe('Google Payments', ()  => {
  });

  describe('subscribe', () => {
-    let sub, sku, user, token, receipt, signature, headers, nextPaymentProcessing;
-    let iapSetupStub, iapValidateStub, iapIsValidatedStub, paymentsCreateSubscritionStub;
+    let sub; let sku; let user; let token; let receipt; let signature; let headers; let
+      nextPaymentProcessing;
+    let iapSetupStub; let iapValidateStub; let iapIsValidatedStub; let
+      paymentsCreateSubscritionStub;

    beforeEach(() => {
      sub = common.content.subscriptionBlocks[subKey];
@@ -142,30 +155,31 @@ describe('Google Payments', ()  => {
      headers = {};
      receipt = `{"token": "${token}"}`;
      signature = '';
-      nextPaymentProcessing = moment.utc().add({days: 2});
+      nextPaymentProcessing = moment.utc().add({ days: 2 });

-      iapSetupStub = sinon.stub(iapModule, 'setup')
+      iapSetupStub = sinon.stub(iap, 'setup')
        .resolves();
-      iapValidateStub = sinon.stub(iapModule, 'validate')
+      iapValidateStub = sinon.stub(iap, 'validate')
        .resolves({});
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(true);
      paymentsCreateSubscritionStub = sinon.stub(payments, 'createSubscription').resolves({});
    });

    afterEach(() => {
-      iapModule.setup.restore();
-      iapModule.validate.restore();
-      iapModule.isValidated.restore();
+      iap.setup.restore();
+      iap.validate.restore();
+      iap.isValidated.restore();
      payments.createSubscription.restore();
    });

    it('should throw an error if receipt is invalid', async () => {
-      iapModule.isValidated.restore();
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iap.isValidated.restore();
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(false);

-      await expect(googlePayments.subscribe(sku, user, receipt, signature, headers, nextPaymentProcessing))
+      await expect(googlePayments
+        .subscribe(sku, user, receipt, signature, headers, nextPaymentProcessing))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -176,7 +190,8 @@ describe('Google Payments', ()  => {
    it('should throw an error if sku is invalid', async () => {
      sku = 'invalid';

-      await expect(googlePayments.subscribe(sku, user, receipt, signature, headers, nextPaymentProcessing))
+      await expect(googlePayments
+        .subscribe(sku, user, receipt, signature, headers, nextPaymentProcessing))
        .to.eventually.be.rejected.and.to.eql({
          httpCode: 401,
          name: 'NotAuthorized',
@@ -203,15 +218,17 @@ describe('Google Payments', ()  => {
        paymentMethod: googlePayments.constants.PAYMENT_METHOD_GOOGLE,
        sub,
        headers,
-        additionalData: {data: receipt, signature},
+        additionalData: { data: receipt, signature },
        nextPaymentProcessing,
      });
    });
  });

  describe('cancelSubscribe ', () => {
-    let user, token, receipt, signature, headers, customerId, expirationDate;
-    let iapSetupStub, iapValidateStub, iapIsValidatedStub, iapGetPurchaseDataStub, paymentCancelSubscriptionSpy;
+    let user; let token; let receipt; let signature; let headers; let customerId; let
+      expirationDate;
+    let iapSetupStub; let iapValidateStub; let iapIsValidatedStub; let iapGetPurchaseDataStub; let
+      paymentCancelSubscriptionSpy;

    beforeEach(async () => {
      token = 'test-token';
@@ -221,15 +238,15 @@ describe('Google Payments', ()  => {
      customerId = 'test-customerId';
      expirationDate = moment.utc();

-      iapSetupStub = sinon.stub(iapModule, 'setup')
+      iapSetupStub = sinon.stub(iap, 'setup')
        .resolves();
-      iapValidateStub = sinon.stub(iapModule, 'validate')
+      iapValidateStub = sinon.stub(iap, 'validate')
        .resolves({
          expirationDate,
        });
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-        .returns([{expirationDate: expirationDate.toDate()}]);
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+        .returns([{ expirationDate: expirationDate.toDate() }]);
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(true);

      user = new User();
@@ -237,16 +254,16 @@ describe('Google Payments', ()  => {
      user.purchased.plan.customerId = customerId;
      user.purchased.plan.paymentMethod = googlePayments.constants.PAYMENT_METHOD_GOOGLE;
      user.purchased.plan.planId = subKey;
-      user.purchased.plan.additionalData = {data: receipt, signature};
+      user.purchased.plan.additionalData = { data: receipt, signature };

      paymentCancelSubscriptionSpy = sinon.stub(payments, 'cancelSubscription').resolves({});
    });

-    afterEach(function () {
-      iapModule.setup.restore();
-      iapModule.validate.restore();
-      iapModule.isValidated.restore();
-      iapModule.getPurchaseData.restore();
+    afterEach(() => {
+      iap.setup.restore();
+      iap.validate.restore();
+      iap.isValidated.restore();
+      iap.getPurchaseData.restore();
      payments.cancelSubscription.restore();
    });

@@ -262,9 +279,9 @@ describe('Google Payments', ()  => {
    });

    it('should throw an error if subscription is still valid', async () => {
-      iapModule.getPurchaseData.restore();
-      iapGetPurchaseDataStub = sinon.stub(iapModule, 'getPurchaseData')
-        .returns([{expirationDate: expirationDate.add({day: 1}).toDate()}]);
+      iap.getPurchaseData.restore();
+      iapGetPurchaseDataStub = sinon.stub(iap, 'getPurchaseData')
+        .returns([{ expirationDate: expirationDate.add({ day: 1 }).toDate() }]);

      await expect(googlePayments.cancelSubscribe(user, headers))
        .to.eventually.be.rejected.and.to.eql({
@@ -275,8 +292,8 @@ describe('Google Payments', ()  => {
    });

    it('should throw an error if receipt is invalid', async () => {
-      iapModule.isValidated.restore();
-      iapIsValidatedStub = sinon.stub(iapModule, 'isValidated')
+      iap.isValidated.restore();
+      iapIsValidatedStub = sinon.stub(iap, 'isValidated')
        .returns(false);

      await expect(googlePayments.cancelSubscribe(user, headers))
--- a/test/api/unit/libs/payments/group-plans/group-payments-cancel.test.js
+++ b/test/api/unit/libs/payments/group-plans/group-payments-cancel.test.js
@@ -1,16 +1,17 @@
 import moment from 'moment';

 import * as sender from '../../../../../../website/server/libs/email';
-import * as api from '../../../../../../website/server/libs/payments/payments';
+import api from '../../../../../../website/server/libs/payments/payments';
 import { model as User } from '../../../../../../website/server/models/user';
 import { model as Group } from '../../../../../../website/server/models/group';
 import {
  generateGroup,
-} from '../../../../../helpers/api-unit.helper.js';
+} from '../../../../../helpers/api-unit.helper';
 import i18n from '../../../../../../website/common/script/i18n';

 describe('Canceling a subscription for group', () => {
-  let plan, group, user, data;
+  let plan; let group; let user; let
+    data;

  beforeEach(async () => {
    user = new User();
@@ -67,9 +68,9 @@ describe('Canceling a subscription for group', () => {
    data.groupId = group._id;
    await api.cancelSubscription(data);

-    let now = new Date();
-    let updatedGroup = await Group.findById(group._id).exec();
-    let daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');
+    const now = new Date();
+    const updatedGroup = await Group.findById(group._id).exec();
+    const daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');

    expect(daysTillTermination).to.be.within(29, 30); // 1 month +/- 1 days
  });
@@ -81,9 +82,9 @@ describe('Canceling a subscription for group', () => {

    await api.cancelSubscription(data);

-    let now = new Date();
-    let updatedGroup = await Group.findById(group._id).exec();
-    let daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');
+    const now = new Date();
+    const updatedGroup = await Group.findById(group._id).exec();
+    const daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');

    expect(daysTillTermination).to.be.within(89, 90); // 3 months +/- 1 days
  });
@@ -95,9 +96,9 @@ describe('Canceling a subscription for group', () => {

    await api.cancelSubscription(data);

-    let now = new Date();
-    let updatedGroup = await Group.findById(group._id).exec();
-    let daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');
+    const now = new Date();
+    const updatedGroup = await Group.findById(group._id).exec();
+    const daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');

    expect(daysTillTermination).to.be.within(38, 39); // should be about 1 month + 1/3 month
  });
@@ -108,9 +109,9 @@ describe('Canceling a subscription for group', () => {

    await api.cancelSubscription(data);

-    let now = new Date();
-    let updatedGroup = await Group.findById(group._id).exec();
-    let daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');
+    const now = new Date();
+    const updatedGroup = await Group.findById(group._id).exec();
+    const daysTillTermination = moment(updatedGroup.purchased.plan.dateTerminated).diff(now, 'days');

    expect(daysTillTermination).to.be.within(13, 15);
  });
@@ -122,7 +123,7 @@ describe('Canceling a subscription for group', () => {

    await api.cancelSubscription(data);

-    let updatedGroup = await Group.findById(group._id).exec();
+    const updatedGroup = await Group.findById(group._id).exec();
    expect(updatedGroup.purchased.plan.extraMonths).to.eql(0);
  });

@@ -134,12 +135,12 @@ describe('Canceling a subscription for group', () => {
    expect(sender.sendTxn.firstCall.args[0]._id).to.equal(user._id);
    expect(sender.sendTxn.firstCall.args[1]).to.equal('group-cancel-subscription');
    expect(sender.sendTxn.firstCall.args[2]).to.eql([
-      {name: 'GROUP_NAME', content: group.name},
+      { name: 'GROUP_NAME', content: group.name },
    ]);
  });

  it('prevents non group leader from managing subscription', async () => {
-    let groupMember = new User();
+    const groupMember = new User();
    data.user = groupMember;
    data.groupId = group._id;

@@ -160,7 +161,7 @@ describe('Canceling a subscription for group', () => {
    await api.createSubscription(data);

    let updatedGroup = await Group.findById(group._id).exec();
-    let newLeader = new User();
+    const newLeader = new User();
    updatedGroup.leader = newLeader._id;
    await updatedGroup.save();

@@ -192,15 +193,15 @@ describe('Canceling a subscription for group', () => {

    await api.cancelSubscription(data);

-    let now = new Date();
+    const now = new Date();
    now.setHours(0, 0, 0, 0);
-    let updatedLeader = await User.findById(user._id).exec();
-    let daysTillTermination = moment(updatedLeader.purchased.plan.dateTerminated).diff(now, 'days');
+    const updatedLeader = await User.findById(user._id).exec();
+    const daysTillTermination = moment(updatedLeader.purchased.plan.dateTerminated).diff(now, 'days');
    expect(daysTillTermination).to.be.within(2, 3); // only a few days
  });

  it('sends an email to members of group', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.guilds.push(group._id);
    await recipient.save();
@@ -214,8 +215,8 @@ describe('Canceling a subscription for group', () => {
    expect(sender.sendTxn.thirdCall.args[0]._id).to.equal(recipient._id);
    expect(sender.sendTxn.thirdCall.args[1]).to.equal('group-member-cancel');
    expect(sender.sendTxn.thirdCall.args[2]).to.eql([
-      {name: 'LEADER', content: user.profile.name},
-      {name: 'GROUP_NAME', content: group.name},
+      { name: 'LEADER', content: user.profile.name },
+      { name: 'GROUP_NAME', content: group.name },
    ]);
  });

@@ -223,7 +224,7 @@ describe('Canceling a subscription for group', () => {
    plan.key = 'basic_earned';
    plan.customerId = api.constants.UNLIMITED_CUSTOMER_ID;

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -233,12 +234,12 @@ describe('Canceling a subscription for group', () => {

    await api.cancelSubscription(data);

-    let updatedLeader = await User.findById(user._id).exec();
+    const updatedLeader = await User.findById(user._id).exec();
    expect(updatedLeader.purchased.plan.dateTerminated).to.not.exist;
  });

  it('does not cancel a user subscription if they are still in another active group plan', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    recipient.purchased.plan = plan;
@@ -252,10 +253,10 @@ describe('Canceling a subscription for group', () => {
    await api.createSubscription(data);

    let updatedUser = await User.findById(recipient._id).exec();
-    let firstDateCreated = updatedUser.purchased.plan.dateCreated;
-    let extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;
+    const firstDateCreated = updatedUser.purchased.plan.dateCreated;
+    const extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;

-    let group2 = generateGroup({
+    const group2 = generateGroup({
      name: 'test group2',
      type: 'guild',
      privacy: 'public',
@@ -291,10 +292,10 @@ describe('Canceling a subscription for group', () => {
    await api.createSubscription(data);

    let updatedUser = await User.findById(user._id).exec();
-    let firstDateCreated = updatedUser.purchased.plan.dateCreated;
-    let extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;
+    const firstDateCreated = updatedUser.purchased.plan.dateCreated;
+    const extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;

-    let group2 = generateGroup({
+    const group2 = generateGroup({
      name: 'test group2',
      type: 'guild',
      privacy: 'public',
--- a/test/api/unit/libs/payments/group-plans/group-payments-create.test.js
+++ b/test/api/unit/libs/payments/group-plans/group-payments-create.test.js
@@ -3,7 +3,7 @@ import stripeModule from 'stripe';
 import nconf from 'nconf';

 import * as sender from '../../../../../../website/server/libs/email';
-import * as api from '../../../../../../website/server/libs/payments/payments';
+import api from '../../../../../../website/server/libs/payments/payments';
 import amzLib from '../../../../../../website/server/libs/payments/amazon';
 import paypalPayments from '../../../../../../website/server/libs/payments/paypal';
 import stripePayments from '../../../../../../website/server/libs/payments/stripe';
@@ -11,7 +11,7 @@ import { model as User } from '../../../../../../website/server/models/user';
 import { model as Group } from '../../../../../../website/server/models/group';
 import {
  generateGroup,
-} from '../../../../../helpers/api-unit.helper.js';
+} from '../../../../../helpers/api-unit.helper';

 describe('Purchasing a group plan for group', () => {
  const EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_GOOGLE = 'Google_subscription';
@@ -19,10 +19,11 @@ describe('Purchasing a group plan for group', () => {
  const EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NORMAL = 'normal_subscription';
  const EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NONE = 'no_subscription';

-  let plan, group, user, data;
-  let stripe = stripeModule('test');
-  let groupLeaderName = 'sender';
-  let groupName = 'test group';
+  let plan; let group; let user; let
+    data;
+  const stripe = stripeModule('test');
+  const groupLeaderName = 'sender';
+  const groupName = 'test group';

  beforeEach(async () => {
    user = new User();
@@ -68,14 +69,17 @@ describe('Purchasing a group plan for group', () => {
      },
    };

-    let subscriptionId = 'subId';
+    const subscriptionId = 'subId';
    sinon.stub(stripe.customers, 'del').resolves({});

-    let currentPeriodEndTimeStamp = moment().add(3, 'months').unix();
+    const currentPeriodEndTimeStamp = moment().add(3, 'months').unix();
    sinon.stub(stripe.customers, 'retrieve')
      .resolves({
        subscriptions: {
-          data: [{id: subscriptionId, current_period_end: currentPeriodEndTimeStamp}], // eslint-disable-line camelcase
+          data: [{
+            id: subscriptionId,
+            current_period_end: currentPeriodEndTimeStamp,
+          }], // eslint-disable-line camelcase
        },
      });

@@ -95,7 +99,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedGroup = await Group.findById(group._id).exec();
+    const updatedGroup = await Group.findById(group._id).exec();

    expect(updatedGroup.purchased.plan.planId).to.eql('basic_3mo');
    expect(updatedGroup.purchased.plan.customerId).to.eql('customer-id');
@@ -126,7 +130,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedGroup = await Group.findById(group._id).exec();
+    const updatedGroup = await Group.findById(group._id).exec();
    expect(updatedGroup.purchased.plan.extraMonths).to.within(1.9, 2);
  });

@@ -139,7 +143,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedGroup = await Group.findById(group._id).exec();
+    const updatedGroup = await Group.findById(group._id).exec();
    expect(updatedGroup.purchased.plan.extraMonths).to.eql(0);
  });

@@ -150,7 +154,7 @@ describe('Purchasing a group plan for group', () => {
    data.groupId = group._id;

    await api.createSubscription(data);
-    let updatedLeader = await User.findById(user._id).exec();
+    const updatedLeader = await User.findById(user._id).exec();

    expect(updatedLeader.purchased.plan.planId).to.eql('group_plan_auto');
    expect(updatedLeader.purchased.plan.customerId).to.eql('group-plan');
@@ -166,7 +170,7 @@ describe('Purchasing a group plan for group', () => {
  });

  it('sends an email to member of group who was not a subscriber', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.guilds.push(group._id);
    await recipient.save();
@@ -179,9 +183,9 @@ describe('Purchasing a group plan for group', () => {
    expect(sender.sendTxn.firstCall.args[0]._id).to.equal(recipient._id);
    expect(sender.sendTxn.firstCall.args[1]).to.equal('group-member-join');
    expect(sender.sendTxn.firstCall.args[2]).to.eql([
-      {name: 'LEADER', content: user.profile.name},
-      {name: 'GROUP_NAME', content: group.name},
-      {name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NONE},
+      { name: 'LEADER', content: user.profile.name },
+      { name: 'GROUP_NAME', content: group.name },
+      { name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NONE },
    ]);
    // confirm that the other email sent is appropriate:
    expect(sender.sendTxn.secondCall.args[0]._id).to.equal(group.leader);
@@ -189,7 +193,7 @@ describe('Purchasing a group plan for group', () => {
  });

  it('sends one email to subscribed member of group, stating subscription is cancelled (Stripe)', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    plan.paymentMethod = stripePayments.constants.PAYMENT_METHOD;
@@ -205,9 +209,9 @@ describe('Purchasing a group plan for group', () => {
    expect(sender.sendTxn.firstCall.args[0]._id).to.equal(recipient._id);
    expect(sender.sendTxn.firstCall.args[1]).to.equal('group-member-join');
    expect(sender.sendTxn.firstCall.args[2]).to.eql([
-      {name: 'LEADER', content: user.profile.name},
-      {name: 'GROUP_NAME', content: group.name},
-      {name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NORMAL},
+      { name: 'LEADER', content: user.profile.name },
+      { name: 'GROUP_NAME', content: group.name },
+      { name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NORMAL },
    ]);
    // confirm that the other email sent is not a cancel-subscription email:
    expect(sender.sendTxn.secondCall.args[0]._id).to.equal(group.leader);
@@ -218,11 +222,11 @@ describe('Purchasing a group plan for group', () => {
    sinon.stub(amzLib, 'getBillingAgreementDetails')
      .resolves({
        BillingAgreementDetails: {
-          BillingAgreementStatus: {State: 'Closed'},
+          BillingAgreementStatus: { State: 'Closed' },
        },
      });

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.planId = 'basic_earned';
    plan.paymentMethod = amzLib.constants.PAYMENT_METHOD;
@@ -238,9 +242,9 @@ describe('Purchasing a group plan for group', () => {
    expect(sender.sendTxn.firstCall.args[0]._id).to.equal(recipient._id);
    expect(sender.sendTxn.firstCall.args[1]).to.equal('group-member-join');
    expect(sender.sendTxn.firstCall.args[2]).to.eql([
-      {name: 'LEADER', content: user.profile.name},
-      {name: 'GROUP_NAME', content: group.name},
-      {name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NORMAL},
+      { name: 'LEADER', content: user.profile.name },
+      { name: 'GROUP_NAME', content: group.name },
+      { name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NORMAL },
    ]);
    // confirm that the other email sent is not a cancel-subscription email:
    expect(sender.sendTxn.secondCall.args[0]._id).to.equal(group.leader);
@@ -259,7 +263,7 @@ describe('Purchasing a group plan for group', () => {
        },
      });

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.planId = 'basic_earned';
    plan.paymentMethod = paypalPayments.constants.PAYMENT_METHOD;
@@ -275,9 +279,9 @@ describe('Purchasing a group plan for group', () => {
    expect(sender.sendTxn.firstCall.args[0]._id).to.equal(recipient._id);
    expect(sender.sendTxn.firstCall.args[1]).to.equal('group-member-join');
    expect(sender.sendTxn.firstCall.args[2]).to.eql([
-      {name: 'LEADER', content: user.profile.name},
-      {name: 'GROUP_NAME', content: group.name},
-      {name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NORMAL},
+      { name: 'LEADER', content: user.profile.name },
+      { name: 'GROUP_NAME', content: group.name },
+      { name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_NORMAL },
    ]);
    // confirm that the other email sent is not a cancel-subscription email:
    expect(sender.sendTxn.secondCall.args[0]._id).to.equal(group.leader);
@@ -292,7 +296,7 @@ describe('Purchasing a group plan for group', () => {
    plan.customerId = 'random';
    plan.paymentMethod = api.constants.GOOGLE_PAYMENT_METHOD;

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -310,9 +314,9 @@ describe('Purchasing a group plan for group', () => {
    expect(sender.sendTxn.args[1][0]._id).to.equal(recipient._id);
    expect(sender.sendTxn.args[1][1]).to.equal('group-member-join');
    expect(sender.sendTxn.args[1][2]).to.eql([
-      {name: 'LEADER', content: groupLeaderName},
-      {name: 'GROUP_NAME', content: groupName},
-      {name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_GOOGLE},
+      { name: 'LEADER', content: groupLeaderName },
+      { name: 'GROUP_NAME', content: groupName },
+      { name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_GOOGLE },
    ]);
    expect(sender.sendTxn.args[2][0]._id).to.equal(group.leader);
    expect(sender.sendTxn.args[2][1]).to.equal('group-member-join');
@@ -325,7 +329,7 @@ describe('Purchasing a group plan for group', () => {
    plan.customerId = 'random';
    plan.paymentMethod = api.constants.IOS_PAYMENT_METHOD;

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -343,9 +347,9 @@ describe('Purchasing a group plan for group', () => {
    expect(sender.sendTxn.args[1][0]._id).to.equal(recipient._id);
    expect(sender.sendTxn.args[1][1]).to.equal('group-member-join');
    expect(sender.sendTxn.args[1][2]).to.eql([
-      {name: 'LEADER', content: groupLeaderName},
-      {name: 'GROUP_NAME', content: groupName},
-      {name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_IOS},
+      { name: 'LEADER', content: groupLeaderName },
+      { name: 'GROUP_NAME', content: groupName },
+      { name: 'PREVIOUS_SUBSCRIPTION_TYPE', content: EMAIL_TEMPLATE_SUBSCRIPTION_TYPE_IOS },
    ]);
    expect(sender.sendTxn.args[2][0]._id).to.equal(group.leader);
    expect(sender.sendTxn.args[2][1]).to.equal('group-member-join');
@@ -354,7 +358,7 @@ describe('Purchasing a group plan for group', () => {
  });

  it('adds months to members with existing gift subscription', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -378,7 +382,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.planId).to.eql('group_plan_auto');
    expect(updatedUser.purchased.plan.customerId).to.eql('group-plan');
@@ -392,7 +396,7 @@ describe('Purchasing a group plan for group', () => {
  });

  it('adds months to members with existing multi-month gift subscription', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -414,7 +418,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.planId).to.eql('group_plan_auto');
    expect(updatedUser.purchased.plan.customerId).to.eql('group-plan');
@@ -428,7 +432,7 @@ describe('Purchasing a group plan for group', () => {
  });

  it('adds months to members with existing recurring subscription (Stripe)', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    plan.paymentMethod = stripePayments.constants.PAYMENT_METHOD;
@@ -450,11 +454,11 @@ describe('Purchasing a group plan for group', () => {
    sinon.stub(amzLib, 'getBillingAgreementDetails')
      .resolves({
        BillingAgreementDetails: {
-          BillingAgreementStatus: {State: 'Closed'},
+          BillingAgreementStatus: { State: 'Closed' },
        },
      });

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.planId = 'basic_earned';
    plan.paymentMethod = amzLib.constants.PAYMENT_METHOD;
@@ -470,7 +474,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.extraMonths).to.within(3, 5);
  });
@@ -485,7 +489,7 @@ describe('Purchasing a group plan for group', () => {
        },
      });

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.planId = 'basic_earned';
    plan.paymentMethod = paypalPayments.constants.PAYMENT_METHOD;
@@ -500,7 +504,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.extraMonths).to.within(2, 3);
    paypalPayments.paypalBillingAgreementGet.restore();
@@ -511,7 +515,7 @@ describe('Purchasing a group plan for group', () => {
  it('adds months to members with existing recurring subscription (iOS)');

  it('adds months to members who already cancelled but not yet terminated recurring subscription', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    plan.paymentMethod = stripePayments.constants.PAYMENT_METHOD;
@@ -527,13 +531,13 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.extraMonths).to.within(2, 3);
  });

  it('adds months to members who already cancelled but not yet terminated group plan subscription', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    plan.paymentMethod = api.constants.GROUP_PLAN_PAYMENT_METHOD;
@@ -550,12 +554,12 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();
    expect(updatedUser.purchased.plan.extraMonths).to.within(3, 4);
  });

  it('resets date terminated if user has old subscription', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    plan.paymentMethod = stripePayments.constants.PAYMENT_METHOD;
@@ -570,13 +574,13 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.dateTerminated).to.not.exist;
  });

  it('adds months to members with existing recurring subscription and includes existing extraMonths', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    plan.paymentMethod = stripePayments.constants.PAYMENT_METHOD;
@@ -591,13 +595,13 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.extraMonths).to.within(7, 9);
  });

  it('adds months to members with existing recurring subscription and ignores existing negative extraMonths', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    plan.paymentMethod = stripePayments.constants.PAYMENT_METHOD;
@@ -612,23 +616,23 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.extraMonths).to.within(2, 3);
  });

  it('does not override gemsBought, mysteryItems, dateCreated, and consective fields', async () => {
-    let planCreatedDate = moment().toDate();
-    let mysteryItem = {title: 'item'};
-    let mysteryItems = [mysteryItem];
-    let consecutive = {
+    const planCreatedDate = moment().toDate();
+    const mysteryItem = { title: 'item' };
+    const mysteryItems = [mysteryItem];
+    const consecutive = {
      trinkets: 3,
      gemCapExtra: 20,
      offset: 1,
      count: 13,
    };

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';

    plan.key = 'basic_earned';
@@ -647,7 +651,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.gemsBought).to.equal(3);
    expect(updatedUser.purchased.plan.mysteryItems[0]).to.eql(mysteryItem);
@@ -659,7 +663,7 @@ describe('Purchasing a group plan for group', () => {
  });

  it('does not modify a user with a group subscription when they join another group', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    recipient.purchased.plan = plan;
@@ -673,10 +677,10 @@ describe('Purchasing a group plan for group', () => {
    await api.createSubscription(data);

    let updatedUser = await User.findById(recipient._id).exec();
-    let firstDateCreated = updatedUser.purchased.plan.dateCreated;
-    let extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;
+    const firstDateCreated = updatedUser.purchased.plan.dateCreated;
+    const extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;

-    let group2 = generateGroup({
+    const group2 = generateGroup({
      name: 'test group2',
      type: 'guild',
      privacy: 'public',
@@ -703,7 +707,7 @@ describe('Purchasing a group plan for group', () => {
  });

  it('does not remove a user who is in two groups plans and leaves one', async () => {
-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    plan.key = 'basic_earned';
    recipient.purchased.plan = plan;
@@ -717,10 +721,10 @@ describe('Purchasing a group plan for group', () => {
    await api.createSubscription(data);

    let updatedUser = await User.findById(recipient._id).exec();
-    let firstDateCreated = updatedUser.purchased.plan.dateCreated;
-    let extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;
+    const firstDateCreated = updatedUser.purchased.plan.dateCreated;
+    const extraMonthsBeforeSecond = updatedUser.purchased.plan.extraMonths;

-    let group2 = generateGroup({
+    const group2 = generateGroup({
      name: 'test group2',
      type: 'guild',
      privacy: 'public',
@@ -733,7 +737,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedGroup = await Group.findById(group._id).exec();
+    const updatedGroup = await Group.findById(group._id).exec();
    await updatedGroup.leave(recipient);

    updatedUser = await User.findById(recipient._id).exec();
@@ -753,7 +757,7 @@ describe('Purchasing a group plan for group', () => {
    plan.key = 'basic_earned';
    plan.customerId = api.constants.UNLIMITED_CUSTOMER_ID;

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -765,7 +769,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.planId).to.eql('basic_3mo');
    expect(updatedUser.purchased.plan.customerId).to.eql(api.constants.UNLIMITED_CUSTOMER_ID);
@@ -782,7 +786,7 @@ describe('Purchasing a group plan for group', () => {
    plan.customerId = 'random';
    plan.paymentMethod = api.constants.GOOGLE_PAYMENT_METHOD;

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -794,7 +798,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.planId).to.eql('basic_3mo');
    expect(updatedUser.purchased.plan.customerId).to.eql('random');
@@ -811,7 +815,7 @@ describe('Purchasing a group plan for group', () => {
    plan.customerId = 'random';
    plan.paymentMethod = api.constants.IOS_PAYMENT_METHOD;

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -823,7 +827,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.planId).to.eql('basic_3mo');
    expect(updatedUser.purchased.plan.customerId).to.eql('random');
@@ -841,7 +845,7 @@ describe('Purchasing a group plan for group', () => {
    plan.customerId = api.constants.GROUP_PLAN_CUSTOMER_ID;
    plan.dateTerminated = moment().add(1, 'months');

-    let recipient = new User();
+    const recipient = new User();
    recipient.profile.name = 'recipient';
    recipient.purchased.plan = plan;
    recipient.guilds.push(group._id);
@@ -853,7 +857,7 @@ describe('Purchasing a group plan for group', () => {

    await api.createSubscription(data);

-    let updatedUser = await User.findById(recipient._id).exec();
+    const updatedUser = await User.findById(recipient._id).exec();

    expect(updatedUser.purchased.plan.planId).to.eql('group_plan_auto');
    expect(updatedUser.purchased.plan.customerId).to.eql(api.constants.GROUP_PLAN_CUSTOMER_ID);
--- a/test/api/unit/libs/payments/paymentHelpers.js
+++ b/test/api/unit/libs/payments/paymentHelpers.js
@@ -1,7 +1,7 @@
 import { model as User } from '../../../../../website/server/models/user';

-export async function createNonLeaderGroupMember (group) {
-  let nonLeader = new User();
+export async function createNonLeaderGroupMember (group) { // eslint-disable-line import/prefer-default-export, max-len
+  const nonLeader = new User();
  nonLeader.guilds.push(group._id);
-  return await nonLeader.save();
+  return nonLeader.save();
 }
--- a/test/api/unit/libs/payments/payments.test.js
+++ b/test/api/unit/libs/payments/payments.test.js
@@ -1,17 +1,18 @@
 import moment from 'moment';

 import * as sender from '../../../../../website/server/libs/email';
-import * as api from '../../../../../website/server/libs/payments/payments';
-import analytics from '../../../../../website/server/libs/analyticsService';
-import notifications from '../../../../../website/server/libs/pushNotifications';
+import api from '../../../../../website/server/libs/payments/payments';
+import * as analytics from '../../../../../website/server/libs/analyticsService';
+import * as notifications from '../../../../../website/server/libs/pushNotifications';
 import { model as User } from '../../../../../website/server/models/user';
 import { translate as t } from '../../../../helpers/api-integration/v3';
 import {
  generateGroup,
-} from '../../../../helpers/api-unit.helper.js';
+} from '../../../../helpers/api-unit.helper';

 describe('payments/index', () => {
-  let user, group, data, plan;
+  let user; let group; let data; let
+    plan;

  beforeEach(async () => {
    user = new User();
@@ -102,7 +103,7 @@ describe('payments/index', () => {
      });

      it('does not set negative extraMonths if plan has past dateTerminated date', async () => {
-        let dateTerminated = moment().subtract(2, 'months').toDate();
+        const dateTerminated = moment().subtract(2, 'months').toDate();
        recipient.purchased.plan.dateTerminated = dateTerminated;

        await api.createSubscription(data);
@@ -120,7 +121,7 @@ describe('payments/index', () => {
      });

      it('adds to date terminated for an existing plan with a future terminated date', async () => {
-        let dateTerminated = moment().add(1, 'months').toDate();
+        const dateTerminated = moment().add(1, 'months').toDate();
        recipient.purchased.plan = plan;
        recipient.purchased.plan.dateTerminated = dateTerminated;

@@ -130,7 +131,7 @@ describe('payments/index', () => {
      });

      it('replaces date terminated for an account with a past terminated date', async () => {
-        let dateTerminated = moment().subtract(1, 'months').toDate();
+        const dateTerminated = moment().subtract(1, 'months').toDate();
        recipient.purchased.plan.dateTerminated = dateTerminated;

        await api.createSubscription(data);
@@ -208,18 +209,21 @@ describe('payments/index', () => {

      it('sends a private message about the gift', async () => {
        await api.createSubscription(data);
-        let msg = '\`Hello recipient, sender has sent you 3 months of subscription!\`';
+        const msg = '`Hello recipient, sender has sent you 3 months of subscription!`';

        expect(user.sendMessage).to.be.calledOnce;
-        expect(user.sendMessage).to.be.calledWith(recipient, { receiverMsg: msg, senderMsg: msg, save: false });
+        expect(user.sendMessage).to.be.calledWith(
+          recipient,
+          { receiverMsg: msg, senderMsg: msg, save: false },
+        );
      });

      it('sends an email about the gift', async () => {
        await api.createSubscription(data);

        expect(sender.sendTxn).to.be.calledWith(recipient, 'gifted-subscription', [
-          {name: 'GIFTER', content: 'sender'},
-          {name: 'X_MONTHS_SUBSCRIPTION', content: 3},
+          { name: 'GIFTER', content: 'sender' },
+          { name: 'X_MONTHS_SUBSCRIPTION', content: 3 },
        ]);
      });

@@ -416,8 +420,8 @@ describe('payments/index', () => {

    context('Mystery Items', () => {
      it('awards mystery items when within the timeframe for a mystery item', async () => {
-        let mayMysteryItemTimeframe = 1464725113000; // May 31st 2016
-        let fakeClock = sinon.useFakeTimers(mayMysteryItemTimeframe);
+        const mayMysteryItemTimeframe = 1464725113000; // May 31st 2016
+        const fakeClock = sinon.useFakeTimers(mayMysteryItemTimeframe);

        data = { paymentMethod: 'PaymentMethod', user, sub: { key: 'basic_3mo' } };

@@ -437,7 +441,7 @@ describe('payments/index', () => {

      it('does not awards mystery items when not within the timeframe for a mystery item', async () => {
        const noMysteryItemTimeframe = 1462183920000; // May 2nd 2016
-        let fakeClock = sinon.useFakeTimers(noMysteryItemTimeframe);
+        const fakeClock = sinon.useFakeTimers(noMysteryItemTimeframe);
        data = { paymentMethod: 'PaymentMethod', user, sub: { key: 'basic_3mo' } };

        await api.createSubscription(data);
@@ -449,7 +453,7 @@ describe('payments/index', () => {

      it('does not add a notification for mystery items if none was awarded', async () => {
        const noMysteryItemTimeframe = 1462183920000; // May 2nd 2016
-        let fakeClock = sinon.useFakeTimers(noMysteryItemTimeframe);
+        const fakeClock = sinon.useFakeTimers(noMysteryItemTimeframe);
        data = { paymentMethod: 'PaymentMethod', user, sub: { key: 'basic_3mo' } };

        await api.createSubscription(data);
@@ -461,9 +465,9 @@ describe('payments/index', () => {
      });

      it('does not award mystery item when user already owns the item', async () => {
-        let mayMysteryItemTimeframe = 1464725113000; // May 31st 2016
-        let fakeClock = sinon.useFakeTimers(mayMysteryItemTimeframe);
-        let mayMysteryItem = 'armor_mystery_201605';
+        const mayMysteryItemTimeframe = 1464725113000; // May 31st 2016
+        const fakeClock = sinon.useFakeTimers(mayMysteryItemTimeframe);
+        const mayMysteryItem = 'armor_mystery_201605';
        user.items.gear.owned[mayMysteryItem] = true;

        data = { paymentMethod: 'PaymentMethod', user, sub: { key: 'basic_3mo' } };
@@ -477,9 +481,9 @@ describe('payments/index', () => {
      });

      it('does not award mystery item when user already has the item in the mystery box', async () => {
-        let mayMysteryItemTimeframe = 1464725113000; // May 31st 2016
-        let fakeClock = sinon.useFakeTimers(mayMysteryItemTimeframe);
-        let mayMysteryItem = 'armor_mystery_201605';
+        const mayMysteryItemTimeframe = 1464725113000; // May 31st 2016
+        const fakeClock = sinon.useFakeTimers(mayMysteryItemTimeframe);
+        const mayMysteryItem = 'armor_mystery_201605';
        user.purchased.plan.mysteryItems = [mayMysteryItem];

        sandbox.spy(user.purchased.plan.mysteryItems, 'push');
@@ -504,8 +508,8 @@ describe('payments/index', () => {
      it('adds a month termination date by default', async () => {
        await api.cancelSubscription(data);

-        let now = new Date();
-        let daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');
+        const now = new Date();
+        const daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');

        expect(daysTillTermination).to.be.within(29, 30); // 1 month +/- 1 days
      });
@@ -515,8 +519,8 @@ describe('payments/index', () => {

        await api.cancelSubscription(data);

-        let now = new Date();
-        let daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');
+        const now = new Date();
+        const daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');

        expect(daysTillTermination).to.be.within(89, 90); // 3 months +/- 1 days
      });
@@ -526,8 +530,8 @@ describe('payments/index', () => {

        await api.cancelSubscription(data);

-        let now = new Date();
-        let daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');
+        const now = new Date();
+        const daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');

        expect(daysTillTermination).to.be.within(38, 39); // should be about 1 month + 1/3 month
      });
@@ -537,8 +541,8 @@ describe('payments/index', () => {

        await api.cancelSubscription(data);

-        let now = new Date();
-        let daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');
+        const now = new Date();
+        const daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');

        expect(daysTillTermination).to.be.within(13, 15);
      });
@@ -549,8 +553,8 @@ describe('payments/index', () => {

        await api.cancelSubscription(data);

-        let now = new Date();
-        let daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');
+        const now = new Date();
+        const daysTillTermination = moment(user.purchased.plan.dateTerminated).diff(now, 'days');

        expect(daysTillTermination).to.be.within(13, 15);
      });
@@ -641,9 +645,10 @@ describe('payments/index', () => {

      it('sends a message from purchaser to recipient', async () => {
        await api.buyGems(data);
-        let msg = '\`Hello recipient, sender has sent you 4 gems!\`';
+        const msg = '`Hello recipient, sender has sent you 4 gems!`';

-        expect(user.sendMessage).to.be.calledWith(recipient, { receiverMsg: msg, senderMsg: msg, save: false });
+        expect(user.sendMessage).to.be
+          .calledWith(recipient, { receiverMsg: msg, senderMsg: msg, save: false });
      });

      it('sends a message from purchaser to recipient wtih custom message', async () => {
@@ -652,7 +657,8 @@ describe('payments/index', () => {
        await api.buyGems(data);

        const msg = `\`Hello recipient, sender has sent you 4 gems!\` ${data.gift.message}`;
-        expect(user.sendMessage).to.be.calledWith(recipient, { receiverMsg: msg, senderMsg: msg, save: false });
+        expect(user.sendMessage).to.be
+          .calledWith(recipient, { receiverMsg: msg, senderMsg: msg, save: false });
      });

      it('sends a push notification if user did not gift to self', async () => {
@@ -671,8 +677,8 @@ describe('payments/index', () => {
        });
        await api.buyGems(data);

-        let [recipientsMessageContent, sendersMessageContent] = ['en', 'en'].map((lang) => {
-          let messageContent = t('giftedGemsFull', {
+        const [recipientsMessageContent, sendersMessageContent] = ['en', 'en'].map(lang => {
+          const messageContent = t('giftedGemsFull', {
            username: recipient.profile.name,
            sender: user.profile.name,
            gemAmount: data.gift.gems.amount,
@@ -681,7 +687,10 @@ describe('payments/index', () => {
          return `\`${messageContent}\``;
        });

-        expect(user.sendMessage).to.be.calledWith(recipient, { receiverMsg: recipientsMessageContent, senderMsg: sendersMessageContent, save: false });
+        expect(user.sendMessage).to.be.calledWith(
+          recipient,
+          { receiverMsg: recipientsMessageContent, senderMsg: sendersMessageContent, save: false },
+        );
      });
    });
  });
@@ -693,7 +702,7 @@ describe('payments/index', () => {

      await api.addSubToGroupUser(user, group);

-      let updatedUser = await User.findById(user._id).exec();
+      const updatedUser = await User.findById(user._id).exec();

      expect(updatedUser.purchased.plan.planId).to.eql('group_plan_auto');
      expect(updatedUser.purchased.plan.customerId).to.eql('group-plan');
@@ -709,17 +718,17 @@ describe('payments/index', () => {
    it('awards the Royal Purple Jackalope pet', async () => {
      await api.addSubToGroupUser(user, group);

-      let updatedUser = await User.findById(user._id).exec();
+      const updatedUser = await User.findById(user._id).exec();

      expect(updatedUser.items.pets['Jackalope-RoyalPurple']).to.eql(5);
    });

    it('saves previously unused Mystery Items and Hourglasses for an expired subscription', async () => {
-      let planExpirationDate = new Date();
+      const planExpirationDate = new Date();
      planExpirationDate.setDate(planExpirationDate.getDate() - 2);
-      let mysteryItem = 'item';
-      let mysteryItems = [mysteryItem];
-      let consecutive = {
+      const mysteryItem = 'item';
+      const mysteryItems = [mysteryItem];
+      const consecutive = {
        trinkets: 3,
      };

@@ -735,7 +744,7 @@ describe('payments/index', () => {
      await user.save();
      await api.addSubToGroupUser(user, group);

-      let updatedUser = await User.findById(user._id).exec();
+      const updatedUser = await User.findById(user._id).exec();

      expect(updatedUser.purchased.plan.mysteryItems[0]).to.eql(mysteryItem);
      expect(updatedUser.purchased.plan.consecutive.trinkets).to.equal(consecutive.trinkets);
--- a/test/api/unit/libs/payments/paypal/checkout-success.test.js
+++ b/test/api/unit/libs/payments/paypal/checkout-success.test.js
@@ -5,8 +5,10 @@ import { model as User } from '../../../../../../website/server/models/user';

 describe('checkout success', () => {
  const subKey = 'basic_3mo';
-  let user, gift, customerId, paymentId;
-  let paypalPaymentExecuteStub, paymentBuyGemsStub, paymentsCreateSubscritionStub;
+  let user; let gift; let customerId; let
+    paymentId;
+  let paypalPaymentExecuteStub; let paymentBuyGemsStub; let
+    paymentsCreateSubscritionStub;

  beforeEach(() => {
    user = new User();
@@ -25,7 +27,9 @@ describe('checkout success', () => {
  });

  it('purchases gems', async () => {
-    await paypalPayments.checkoutSuccess({user, gift, paymentId, customerId});
+    await paypalPayments.checkoutSuccess({
+      user, gift, paymentId, customerId,
+    });

    expect(paypalPaymentExecuteStub).to.be.calledOnce;
    expect(paypalPaymentExecuteStub).to.be.calledWith(paymentId, { payer_id: customerId });
@@ -38,7 +42,7 @@ describe('checkout success', () => {
  });

  it('gifts gems', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    await receivingUser.save();
    gift = {
      type: 'gems',
@@ -48,7 +52,9 @@ describe('checkout success', () => {
      },
    };

-    await paypalPayments.checkoutSuccess({user, gift, paymentId, customerId});
+    await paypalPayments.checkoutSuccess({
+      user, gift, paymentId, customerId,
+    });

    expect(paypalPaymentExecuteStub).to.be.calledOnce;
    expect(paypalPaymentExecuteStub).to.be.calledWith(paymentId, { payer_id: customerId });
@@ -62,7 +68,7 @@ describe('checkout success', () => {
  });

  it('gifts subscription', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    await receivingUser.save();
    gift = {
      type: 'subscription',
@@ -72,7 +78,9 @@ describe('checkout success', () => {
      },
    };

-    await paypalPayments.checkoutSuccess({user, gift, paymentId, customerId});
+    await paypalPayments.checkoutSuccess({
+      user, gift, paymentId, customerId,
+    });

    expect(paypalPaymentExecuteStub).to.be.calledOnce;
    expect(paypalPaymentExecuteStub).to.be.calledWith(paymentId, { payer_id: customerId });
--- a/test/api/unit/libs/payments/paypal/checkout.test.js
+++ b/test/api/unit/libs/payments/paypal/checkout.test.js
@@ -6,7 +6,7 @@ import { model as User } from '../../../../../../website/server/models/user';
 import common from '../../../../../../website/common';

 const BASE_URL = nconf.get('BASE_URL');
-const i18n = common.i18n;
+const { i18n } = common;

 describe('checkout', () => {
  const subKey = 'basic_3mo';
@@ -53,7 +53,7 @@ describe('checkout', () => {
  });

  it('creates a link for gem purchases', async () => {
-    let link = await paypalPayments.checkout({user: new User()});
+    const link = await paypalPayments.checkout({ user: new User() });

    expect(paypalPaymentCreateStub).to.be.calledOnce;
    expect(paypalPaymentCreateStub).to.be.calledWith(getPaypalCreateOptions('Habitica Gems', 5.00));
@@ -61,9 +61,9 @@ describe('checkout', () => {
  });

  it('should error if gem amount is too low', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    receivingUser.save();
-    let gift = {
+    const gift = {
      type: 'gems',
      gems: {
        amount: 0,
@@ -71,7 +71,7 @@ describe('checkout', () => {
      },
    };

-    await expect(paypalPayments.checkout({gift}))
+    await expect(paypalPayments.checkout({ gift }))
      .to.eventually.be.rejected.and.to.eql({
        httpCode: 400,
        message: 'Amount must be at least 1.',
@@ -80,10 +80,10 @@ describe('checkout', () => {
  });

  it('should error if the user cannot get gems', async () => {
-    let user = new User();
+    const user = new User();
    sinon.stub(user, 'canGetGems').resolves(false);

-    await expect(paypalPayments.checkout({user})).to.eventually.be.rejected.and.to.eql({
+    await expect(paypalPayments.checkout({ user })).to.eventually.be.rejected.and.to.eql({
      httpCode: 401,
      message: i18n.t('groupPolicyCannotGetGems'),
      name: 'NotAuthorized',
@@ -91,9 +91,9 @@ describe('checkout', () => {
  });

  it('creates a link for gifting gems', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    await receivingUser.save();
-    let gift = {
+    const gift = {
      type: 'gems',
      uuid: receivingUser._id,
      gems: {
@@ -101,7 +101,7 @@ describe('checkout', () => {
      },
    };

-    let link = await paypalPayments.checkout({gift});
+    const link = await paypalPayments.checkout({ gift });

    expect(paypalPaymentCreateStub).to.be.calledOnce;
    expect(paypalPaymentCreateStub).to.be.calledWith(getPaypalCreateOptions('Habitica Gems (Gift)', '4.00'));
@@ -109,9 +109,9 @@ describe('checkout', () => {
  });

  it('creates a link for gifting a subscription', async () => {
-    let receivingUser = new User();
+    const receivingUser = new User();
    receivingUser.save();
-    let gift = {
+    const gift = {
      type: 'subscription',
      subscription: {
        key: subKey,
@@ -119,7 +119,7 @@ describe('checkout', () => {
      },
    };

-    let link = await paypalPayments.checkout({gift});
+    const link = await paypalPayments.checkout({ gift });

    expect(paypalPaymentCreateStub).to.be.calledOnce;
    expect(paypalPaymentCreateStub).to.be.calledWith(getPaypalCreateOptions('mo. Habitica Subscription (Gift)', '15.00'));
--- a/Show More
+++ b/Show More